1276987 (number)
1,276,987 (one million two hundred seventysix thousand nine hundred eightyseven) is an odd sevendigits prime number following 1276986 and preceding 1276988. In scientific notation, it is written as 1.276987 × 10^{6}. The sum of its digits is 40. It has a total of 1 prime factor and 2 positive divisors. There are 1,276,986 positive integers (up to 1276987) that are relatively prime to 1276987.
Basic properties
 Is Prime? Yes
 Number parity Odd
 Number length 7
 Sum of Digits 40
 Digital Root 4
Name
Short name  1 million 276 thousand 987 

Full name  one million two hundred seventysix thousand nine hundred eightyseven 
Notation
Scientific notation  1.276987 × 10^{6} 

Engineering notation  1.276987 × 10^{6} 
Prime Factorization of 1276987
Prime Factorization 1276987
Prime numberω(n)  Distinct Factors  1  Total number of distinct prime factors 

Ω(n)  Total Factors  1  Total number of prime factors 
rad(n)  Radical  1276987  Product of the distinct prime numbers 
λ(n)  Liouville Lambda  1  Returns the parity of Ω(n), such that λ(n) = (1)^{Ω(n)} 
μ(n)  Mobius Mu  1  Returns:

Λ(n)  Mangoldt function  14.060013954853  Returns log(p) if n is a power p^{k} of any prime p (for any k >= 1), else returns 0 
The prime factorization of 1,276,987 is 1276987. Since it has a total of 1 prime factor, 1,276,987 is a prime number.
Divisors of 1276987
2 divisors
τ(n)  Total Divisors  2  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  1276988  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  1  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  638494  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  1130.0384949195  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  1.9999984338146  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 1,276,987 can be divided by 2 positive divisors (out of which 0 are even, and 2 are odd). The sum of these divisors (counting 1,276,987) is 1,276,988, the average is 638,494.
Other Arithmetic Functions (n = 1276987)
φ(n)  Euler Totient  1276986  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  1276986  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 98161  Total number of primes less than or equal to n 
r_{2}(n)  Sum of 2 squares  0  The number of ways n can be represented as the sum of 2 squares 
There are 1,276,986 positive integers (less than 1,276,987) that are coprime with 1,276,987. And there are approximately 98,161 prime numbers less than or equal to 1,276,987.
Divisibility of 1276987
m  2  3  4  5  6  7  8  9 

n mod m  1  1  3  2  1  5  3  4 
1,276,987 is not divisible by any number less than or equal to 9.
Classification of 1276987
By Arithmetic functions
 Arithmetic
 Prime
 Deficient
Expressible via specific sums
 Polite
 Nonhypotenuse
By Powers
 Prime Power
 Square Free
Base conversion (1276987)
Base  System  Value 

2  Binary  100110111110000111011 
3  Ternary  2101212200211 
4  Quaternary  10313300323 
5  Quinary  311330422 
6  Senary  43211551 
8  Octal  4676073 
10  Decimal  1276987 
12  Duodecimal  516bb7 
16  Hexadecimal  137c3b 
20  Vigesimal  7jc97 
36  Base36  rdbv 
Basic calculations (n = 1276987)
Multiplication
n×yn×2  2553974 

n×3  3830961 
n×4  5107948 
n×5  6384935 
Division
n÷yn÷2  638493.500 

n÷3  425662.333 
n÷4  319246.750 
n÷5  255397.400 
Exponentiation
n^{y}n^{2}  1630695798169 

n^{3}  2082377335216436803 
n^{4}  2659168786166031983752561 
n^{5}  3395723970739802684836231613707 
Nth Root
^{y}√n^{2}√n  1130.0384949195 

^{3}√n  108.49144460279 
^{4}√n  33.616045200462 
^{5}√n  16.643217747886 
1276987 as geometric shapes
Circle
Radius = nDiameter  2553974 

Circumference  8023545.9558593 
Area  5122981939767.5 
Sphere
Radius = nVolume  8.7226417844238E+18 

Surface area  20491927759070 
Circumference  8023545.9558593 
Square
Length = nPerimeter  5107948 

Area  1630695798169 
Diagonal  1805932.3343741 
Cube
Length = nSurface area  9784174789014 

Volume  2082377335216436803 
Space diagonal  2211806.364605 
Equilateral Triangle
Length = nPerimeter  3830961 

Area  706111993529.45 
Altitude  1105903.1823025 
Triangular Pyramid
Length = nSurface area  2824447974117.8 

Volume  2.4541052245345E+17 
Height  1042655.5193892 
Cryptographic Hash Functions
md5  5e0939198bdce80d4d241dc8cc6acbec 

sha1  260d89775412d1389f17c1d9b8ce7bc112bce2e0 
sha256  d3573b17883be6a87809e281ed6c55d0f839858d55929aeb9800816cf0bbcdf7 
sha512  9b1c579d230e0711bcccea31d9d044d290139d2b6ed3c60251a238222b43368948b4ccc555c5bec09f012fa7b468161e02573d5183d4fa1dd0216f436dd0be88 
ripemd160  a23950a30d35d9f81858c62b2acfa2bc1d17c2cf 