156939987 (number)

156939987 is an odd 9-digits composite number following 156939986 and preceding 156939988. In scientific notation, it is written as 1.56939987 × 10^8. The sum of its digits is 57. It has a total of 2 prime factors and 4 positive divisors. There are 104626656 positive integers (up to 156939987) that are relatively prime to 156939987.

Interesting facts

Basic properties

Name

Name one hundred fifty-six million nine hundred thirty-nine thousand nine hundred eighty-seven

Notation

Scientific notation 1.56939987 × 10^8
Engineering notation 1.56939987 × 10^6

Prime Factorization of 156939987

Prime Factorization 3 × 52313329

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 156939987
Product of the distinct prime numbers

The prime factorization of 156939987 is 3 × 52313329. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 9, 68, 90, 675, 222, 3389, 5071, 30515, 12428, 611299, 759318, 2541808, 9032682, 66931688, 50977412, 828418853, 153699852, 2829353860, 301417513

Basic calculations (n = 156939987)

Multiplication

n×y
n×2 313879974
n×3 470819961
n×4 627759948
n×5 784699935

Division

n÷y
n÷2 78469993.5
n÷3 52313329
n÷3 39234996.75
n÷5 31387997.4

Exponentiation

ny
n2 24630159519560169
n3 3.8654569148077E+24
n4 6.0664475795898E+32
n5 9.5206820427701E+40

Nth Root

y√n
2√n 12527.569077838
3√n 539.40032538641
4√n 111.9266236328
5√n 43.565903228682

Divisors of 156939987

1, 3, 52313329, 156939987

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -156939986
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 1
Returns the nth root of the product of n divisors
H Harmonic Mean 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 156939987 can be divided by 4 positive divisors. The sum of these divisors (counting 156939987) is 1, the average is 0.25.

Base conversion 156939987

Base System Value
2 Binary 1001010110101011011011010011
3 Ternary 101221022101012010
4 Quaternary 21112223123103
5 Quinary 310134034422
6 Senary 23323434003
8 Octal 1126533323
10 Decimal 156939987
12 Duodecimal 44685903
16 Hexadecimal 95ab6d3
20 Vigesimal 290h9j7
36 Base36 2lfro3

Cryptographic Hash Functions

md5 0b9195995b22bc923f9cf91e33b88647
sha1 10071cdd87021b8b96f1909398b9f766028a2d00
sha256 f4086f95e8e8c9a20132b35efa5c4acc58abc180b88768b49d9b603972851dc4
sha512 93ba54cab20f40569d98111b9f6dbcb652f91677373abd302bc37fa3b2c90b10bc7654a4da71b4d5c21c7f5640ec1675b208c03c69d9b8abd3e2ce56324d6a7c
ripemd-160 ec6c9b3e8eebfc7ac9770a9b5c20c74fcd3d36c6

156939987 as geometric shapes

Circle

Radius = n
Diameter 313879974
Circumference 986083020.42736
Area 7.7377928203395E+16

Sphere

Radius = n
Volume 1.619158806177E+25
Surface area 3.0951171281358E+17
Circumference 986083020.42736

Square

Length = n
Perimeter 627759948
Area 24630159519560169
Diagonal 221946658.09406

Cube

Length = n
Surface area 147780957117361014
Volume 3.8654569148077E+24
Space diagonal 271828031.2232

Equilateral Triangle

Length = n
Perimeter 470819961
Area 1.0665171921601E+16
Altitude 135914015.6116

Triangular Pyramid

Length = n
Surface area 1.0665171921601E+16
Volume 4.5554846614083E+23
Height 73982219.364686