21305057 (number)

21305057 is an odd 8-digits composite number following 21305056 and preceding 21305058. In scientific notation, it is written as 2.1305057 × 10^7. The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors. There are 21169200 positive integers (up to 21305057) that are relatively prime to 21305057.

Interesting facts

Basic properties

Name

Name twenty-one million three hundred five thousand fifty-seven

Notation

Scientific notation 2.1305057 × 10^7
Engineering notation 2.1305057 × 10^6

Prime Factorization of 21305057

Prime Factorization 157 × 135701

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21305057
Product of the distinct prime numbers

The prime factorization of 21305057 is 157 × 135701. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21305057)

Multiplication

n×y
n×2 42610114
n×3 63915171
n×4 85220228
n×5 106525285

Division

n÷y
n÷2 10652528.5
n÷3 7101685.6666667
n÷3 5326264.25
n÷5 4261011.4

Exponentiation

ny
n2 453905453773249
n3 9.6704815652499E+21
n4 2.060301609651E+29
n5 4.3894843230806E+36

Nth Root

y√n
2√n 4615.7401356662
3√n 277.22191984619
4√n 67.939238556715
5√n 29.22109862678

Divisors of 21305057

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 -21305056
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 21305057 can be divided by 4 positive divisors. The sum of these divisors (counting 21305057) is 1, the average is 0.25.

Base conversion 21305057

Base System Value
2 Binary 1010001010001011011100001
3 Ternary 1111002102001012
4 Quaternary 1101101123201
5 Quinary 20423230212
6 Senary 2040350305
8 Octal 121213341
10 Decimal 21305057
12 Duodecimal 7175395
16 Hexadecimal 14516e1
20 Vigesimal 6d32ch
36 Base36 con35

Cryptographic Hash Functions

md5 ef3930e76aab5ebf8992827f0c01ccb0
sha1 a579b88b3ce34b2adb05e628f05a5d61c2a176c2
sha256 8ec8405b2b31a05f6034fb07eee2957551f59f5ceef09303286c8c870406af1c
sha512 ca37520d1a420c4c8862e0dfdc54b9631b584eb106aaa3cd72554670602ad857e5efd98749180f7d606f2c10933bbba081c2b4b8834878d06db7b6ae992f6ff1
ripemd-160 4d3c680f412a6e8e1c3346ca837daf0de04355f6

21305057 as geometric shapes

Circle

Radius = n
Diameter 42610114
Circumference 133863621.11102
Area 1.4259860389984E+15

Sphere

Radius = n
Volume 4.0507618456086E+22
Surface area 5.7039441559935E+15
Circumference 133863621.11102

Square

Length = n
Perimeter 85220228
Area 453905453773249
Diagonal 30129900.556532

Cube

Length = n
Surface area 2723432722639494
Volume 9.6704815652499E+21
Space diagonal 36901441.182151

Equilateral Triangle

Length = n
Perimeter 63915171
Area 1.9654682694197E+14
Altitude 18450720.591075

Triangular Pyramid

Length = n
Surface area 1.9654682694197E+14
Volume 1.1396771820213E+21
Height 10043300.185511