21031745 (number)

21031745 is an odd 8-digits composite number following 21031744 and preceding 21031746. In scientific notation, it is written as 2.1031745 × 10^7. The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors. There are 14354304 positive integers (up to 21031745) that are relatively prime to 21031745.

Interesting facts

Basic properties

Name

Name twenty-one million thirty-one thousand seven hundred forty-five

Notation

Scientific notation 2.1031745 × 10^7
Engineering notation 2.1031745 × 10^6

Prime Factorization of 21031745

Prime Factorization 7 × 5 × 233 × 2579

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21031745
Product of the distinct prime numbers

The prime factorization of 21031745 is 7 × 5 × 233 × 2579. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 4, 58, 71, 712, 373, 9269, 2982, 3221, 94219, 814574, 639113, 9442414, 2119984, 68991055, 71160403, 666724068, 721257049, 9769856141, 5234164318

Basic calculations (n = 21031745)

Multiplication

n×y
n×2 42063490
n×3 63095235
n×4 84126980
n×5 105158725

Division

n÷y
n÷2 10515872.5
n÷3 7010581.6666667
n÷3 5257936.25
n÷5 4206349

Exponentiation

ny
n2 442334297745025
n3 9.3030621549274E+21
n4 1.9565963096158E+29
n5 4.1150634651781E+36

Nth Root

y√n
2√n 4586.0380504309
3√n 276.03136677047
4√n 67.720292752106
5√n 29.145738330596

Divisors of 21031745

1, 5, 7, 35, 233, 1165, 1631, 2579, 8155, 12895, 18053, 90265, 600907, 3004535, 4206349, 21031745

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 -21031744
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 21031745 can be divided by 16 positive divisors. The sum of these divisors (counting 21031745) is 1, the average is 0.0625.

Base conversion 21031745

Base System Value
2 Binary 1010000001110101101000001
3 Ternary 1110120112010112
4 Quaternary 1100032231001
5 Quinary 20341003440
6 Senary 2030441105
8 Octal 120165501
10 Decimal 21031745
12 Duodecimal 7063195
16 Hexadecimal 140eb41
20 Vigesimal 6b8j75
36 Base36 cis75

Cryptographic Hash Functions

md5 e51f7c95fec731acbf7f1506213eb504
sha1 632b85d24f7189c559fb22f1fe709f7201f60a17
sha256 f752d9a857bc6877cfbbe5dad9be5d81376ccf2644d32334d4d61a057bf5700a
sha512 319c8e21cd8efa4cfb7ae30f8e18c53db48316abb933ca31aead9dee4e2db3a0549fa09d6c6f9de057d1e31d14a41cd6ac00daabbb9007719f54d4bcd0f12d5c
ripemd-160 b0c64e07f727ace7fe9eea1b3b479c114c2b8fbb

21031745 as geometric shapes

Circle

Radius = n
Diameter 42063490
Circumference 132146351.16835
Area 1.3896341802266E+15

Sphere

Radius = n
Volume 3.8968575629079E+22
Surface area 5.5585367209063E+15
Circumference 132146351.16835

Square

Length = n
Perimeter 84126980
Area 442334297745025
Diagonal 29743379.019373

Cube

Length = n
Surface area 2654005786470150
Volume 9.3030621549274E+21
Space diagonal 36428050.911833

Equilateral Triangle

Length = n
Perimeter 63095235
Area 1.9153636940617E+14
Altitude 18214025.455916

Triangular Pyramid

Length = n
Surface area 1.9153636940617E+14
Volume 1.0963763892582E+21
Height 9914459.6731242