21371731 (number)

21371731 is an odd 8-digits composite number following 21371730 and preceding 21371732. In scientific notation, it is written as 2.1371731 × 10^7. The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors. There are 20874672 positive integers (up to 21371731) that are relatively prime to 21371731.

Interesting facts

Basic properties

Name

Name twenty-one million three hundred seventy-one thousand seven hundred thirty-one

Notation

Scientific notation 2.1371731 × 10^7
Engineering notation 2.1371731 × 10^6

Prime Factorization of 21371731

Prime Factorization 43 × 497017

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21371731
Product of the distinct prime numbers

The prime factorization of 21371731 is 43 × 497017. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21371731)

Multiplication

n×y
n×2 42743462
n×3 64115193
n×4 85486924
n×5 106858655

Division

n÷y
n÷2 10685865.5
n÷3 7123910.3333333
n÷3 5342932.75
n÷5 4274346.2

Exponentiation

ny
n2 456750885936361
n3 9.7615570682436E+21
n4 2.0862137180365E+29
n5 4.4585998390386E+36

Nth Root

y√n
2√n 4622.9569541582
3√n 277.5108066024
4√n 67.992330112728
5√n 29.239365212402

Divisors of 21371731

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 -21371730
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 21371731 can be divided by 4 positive divisors. The sum of these divisors (counting 21371731) is 1, the average is 0.25.

Base conversion 21371731

Base System Value
2 Binary 1010001100001101101010011
3 Ternary 1111012210111121
4 Quaternary 1101201231103
5 Quinary 20432343411
6 Senary 2042023111
8 Octal 121415523
10 Decimal 21371731
12 Duodecimal 71a7a97
16 Hexadecimal 1461b53
20 Vigesimal 6db96b
36 Base36 cq2j7

Cryptographic Hash Functions

md5 819e78b3b17e1a5e71668e0f722c4698
sha1 6aec0b1ac7c86beca6dd25677eea1442f5c2774c
sha256 0892eaa692ff82ab8374eb8de25e3ff84aedfa96569fdd1de1d896c35463d2f0
sha512 882ea62ea161a1c8ae0fc7c6933d856cdbc1bdf43c2c0177ce37512409d1dcff9926d94711f56bc816e380cb9e3ed82ea877627a30208fbe8d50324b8dfaeee4
ripemd-160 694e495a321d7b7af5eb0261b1660380263bb9aa

21371731 as geometric shapes

Circle

Radius = n
Diameter 42743462
Circumference 134282546.20819
Area 1.4349252277783E+15

Sphere

Radius = n
Volume 4.0889114630922E+22
Surface area 5.7397009111132E+15
Circumference 134282546.20819

Square

Length = n
Perimeter 85486924
Area 456750885936361
Diagonal 30224191.83159

Cube

Length = n
Surface area 2740505315618166
Volume 9.7615570682436E+21
Space diagonal 37016923.937695

Equilateral Triangle

Length = n
Perimeter 64115193
Area 1.9777893521097E+14
Altitude 18508461.968847

Triangular Pyramid

Length = n
Surface area 1.9777893521097E+14
Volume 1.1504105329824E+21
Height 10074730.61053