21031431 (number)

21031431 is an odd 8-digits composite number following 21031430 and preceding 21031432. In scientific notation, it is written as 2.1031431 × 10^7. The sum of its digits is 15. It has a total of 4 prime factors and 16 positive divisors. There are 13104000 positive integers (up to 21031431) that are relatively prime to 21031431.

Interesting facts

Basic properties

Name

Name twenty-one million thirty-one thousand four hundred thirty-one

Notation

Scientific notation 2.1031431 × 10^7
Engineering notation 2.1031431 × 10^6

Prime Factorization of 21031431

Prime Factorization 3 × 17 × 151 × 2731

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21031431
Product of the distinct prime numbers

The prime factorization of 21031431 is 3 × 17 × 151 × 2731. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 3, 12, 2, 43, 659, 2507, 6770, 28283, 83692, 534841, 209408, 2592403, 8213165, 62304816, 87373854, 909206951, 951264066, 7848474412, 7945619386

Basic calculations (n = 21031431)

Multiplication

n×y
n×2 42062862
n×3 63094293
n×4 84125724
n×5 105157155

Division

n÷y
n÷2 10515715.5
n÷3 7010477
n÷3 5257857.75
n÷5 4206286.2

Exponentiation

ny
n2 442321089907761
n3 9.3026454822399E+21
n4 1.9564794657719E+29
n5 4.1147562887298E+36

Nth Root

y√n
2√n 4586.00381596
3√n 276.02999306482
4√n 67.72003998788
5√n 29.145651301997

Divisors of 21031431

1, 3, 17, 51, 151, 453, 2567, 2731, 7701, 8193, 46427, 139281, 412381, 1237143, 7010477, 21031431

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21031430
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21031431 can be divided by 16 positive divisors. The sum of these divisors (counting 21031431) is 1, the average is 0.0625.

Base conversion 21031431

Base System Value
2 Binary 1010000001110101000000111
3 Ternary 1110120111200220
4 Quaternary 1100032220013
5 Quinary 20341001211
6 Senary 2030435423
8 Octal 120165007
10 Decimal 21031431
12 Duodecimal 7062b73
16 Hexadecimal 140ea07
20 Vigesimal 6b8ibb
36 Base36 ciryf

Cryptographic Hash Functions

md5 3c2b4ee323b0c0e31893f42997aa3781
sha1 21e4755f3113d1c11b4eba395fa45355e1c57617
sha256 f1f361f7ffbc8a1d7aa0bd8541151db5f969de13dd891375c450d668b21f0f51
sha512 ed4d80a1daa066c2cef08e49d72c259074d1e5ed0ed3380fcbda6194b12c7efeeb03eaead4a08449621fa6e238cc9cc1617976168d42698a328436d9a2f1dab0
ripemd-160 452bcc4bd5b9ea10dcd14d8102d7252bb9a781e0

21031431 as geometric shapes

Circle

Radius = n
Diameter 42062862
Circumference 132144378.24816
Area 1.3895926865821E+15

Sphere

Radius = n
Volume 3.8966830274607E+22
Surface area 5.5583707463282E+15
Circumference 132144378.24816

Square

Length = n
Perimeter 84125724
Area 442321089907761
Diagonal 29742934.956314

Cube

Length = n
Surface area 2653926539446566
Volume 9.3026454822399E+21
Space diagonal 36427507.047879

Equilateral Triangle

Length = n
Perimeter 63094293
Area 1.9153065024487E+14
Altitude 18213753.52394

Triangular Pyramid

Length = n
Surface area 1.9153065024487E+14
Volume 1.096327283911E+21
Height 9914311.6521046