21031605 (number)

21031605 is an odd 8-digits composite number following 21031604 and preceding 21031606. In scientific notation, it is written as 2.1031605 × 10^7. The sum of its digits is 18. It has a total of 4 prime factors and 16 positive divisors. There are 9535104 positive integers (up to 21031605) that are relatively prime to 21031605.

Interesting facts

Basic properties

Name

Name twenty-one million thirty-one thousand six hundred five

Notation

Scientific notation 2.1031605 × 10^7
Engineering notation 2.1031605 × 10^6

Prime Factorization of 21031605

Prime Factorization 5 × 63 × 179 × 373

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21031605
Product of the distinct prime numbers

The prime factorization of 21031605 is 5 × 63 × 179 × 373. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 2, 82, 16, 445, 799, 7234, 6916, 37773, 905, 834103, 351230, 8016230, 3927336, 40009315, 68005537, 462005817, 235206976, 1498568491, 2570711851

Basic calculations (n = 21031605)

Multiplication

n×y
n×2 42063210
n×3 63094815
n×4 84126420
n×5 105158025

Division

n÷y
n÷2 10515802.5
n÷3 7010535
n÷3 5257901.25
n÷5 4206321

Exponentiation

ny
n2 442328408876025
n3 9.3028763757591E+21
n4 1.956544212988E+29
n5 4.1149265052599E+36

Nth Root

y√n
2√n 4586.0227866856
3√n 276.03075429193
4√n 67.72018005503
5√n 29.145699528164

Divisors of 21031605

1, 5, 63, 179, 315, 373, 895, 1865, 11277, 23499, 56385, 66767, 117495, 333835, 4206321, 21031605

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 -21031604
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 21031605 can be divided by 16 positive divisors. The sum of these divisors (counting 21031605) is 1, the average is 0.0625.

Base conversion 21031605

Base System Value
2 Binary 1010000001110101010110101
3 Ternary 1110120111221100
4 Quaternary 1100032222311
5 Quinary 20341002410
6 Senary 2030440313
8 Octal 120165265
10 Decimal 21031605
12 Duodecimal 7063099
16 Hexadecimal 140eab5
20 Vigesimal 6b8j05
36 Base36 cis39

Cryptographic Hash Functions

md5 1d96bd85147b0270ce5c0212b3c6aece
sha1 4979d4a7e0e288aa708b9b229ef772877148ed07
sha256 c1ab0addace935b1697f3799912f7f8ee9255701ae2e32cfbf6d07624a78884c
sha512 7c53ac1ab9d17b3d9a2af4ba47745d96235d927868ce43b238286b0b742e7c39b3290a2e258a880fbb4edb809c30630c5db93ba3446476b7c61aa4c8e7278cbf
ripemd-160 f2f2a3d617d379236054f3bdaeb0a66d9e6bc6f9

21031605 as geometric shapes

Circle

Radius = n
Diameter 42063210
Circumference 132145471.5224
Area 1.389615679799E+15

Sphere

Radius = n
Volume 3.8967797439118E+22
Surface area 5.5584627191959E+15
Circumference 132145471.5224

Square

Length = n
Perimeter 84126420
Area 442328408876025
Diagonal 29743181.029474

Cube

Length = n
Surface area 2653970453256150
Volume 9.3028763757591E+21
Space diagonal 36427808.42472

Equilateral Triangle

Length = n
Perimeter 63094815
Area 1.9153381945109E+14
Altitude 18213904.21236

Triangular Pyramid

Length = n
Surface area 1.9153381945109E+14
Volume 1.0963544949732E+21
Height 9914393.6764913