21131205 (number)

21131205 is an odd 8-digits composite number following 21131204 and preceding 21131206. In scientific notation, it is written as 2.1131205 × 10^7. The sum of its digits is 15. It has a total of 4 prime factors and 16 positive divisors. There are 11211200 positive integers (up to 21131205) that are relatively prime to 21131205.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1131205 × 10^7
Engineering notation 2.1131205 × 10^6

Prime Factorization of 21131205

Prime Factorization 3 × 5 × 197 × 7151

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21131205
Product of the distinct prime numbers

The prime factorization of 21131205 is 3 × 5 × 197 × 7151. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 5, 79, 24, 813, 880, 9805, 1344, 47531, 57099, 731908, 281789, 9720517, 8873136, 73338484, 96950878, 925584810, 358365037, 5658201933, 3434490522

Basic calculations (n = 21131205)

Multiplication

n×y
n×2 42262410
n×3 63393615
n×4 84524820
n×5 105656025

Division

n÷y
n÷2 10565602.5
n÷3 7043735
n÷3 5282801.25
n÷5 4226241

Exponentiation

ny
n2 446527824752025
n3 9.4356710030391E+21
n4 1.9938709827778E+29
n5 4.2132896480628E+36

Nth Root

y√n
2√n 4596.8690431641
3√n 276.46580394973
4√n 67.800214182287
5√n 29.173252615854

Divisors of 21131205

1, 3, 5, 15, 197, 591, 985, 2955, 7151, 21453, 35755, 107265, 1408747, 4226241, 7043735, 21131205

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 -21131204
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 21131205 can be divided by 16 positive divisors. The sum of these divisors (counting 21131205) is 1, the average is 0.0625.

Base conversion 21131205

Base System Value
2 Binary 1010000100110111111000101
3 Ternary 1110202120120020
4 Quaternary 1100212333011
5 Quinary 20402144310
6 Senary 2032525353
8 Octal 120467705
10 Decimal 21131205
12 Duodecimal 70b0859
16 Hexadecimal 1426fc5
20 Vigesimal 6c1805
36 Base36 ckwxx

Cryptographic Hash Functions

md5 51777b5635e47a2fe79b34e4ae93f928
sha1 6da8e24f9296a6f15f63015fad224cbec952e672
sha256 c866e5f114f61a6144344565b4057a724239b1cc59ebaf39264bd6c340dfd075
sha512 27ecfb80f9a0fae9f2a6822f3a209f62c2a3778718549e1b0740e28143f3357c478e86449456acfc6434cffcf9ac71596c38043c71489254e221f4da7e49437a
ripemd-160 13e28b3826862a889683ad96094c8169989184a3

21131205 as geometric shapes

Circle

Radius = n
Diameter 42262410
Circumference 132771276.779
Area 1.4028085338644E+15

Sphere

Radius = n
Volume 3.9524046273117E+22
Surface area 5.6112341354576E+15
Circumference 132771276.779

Square

Length = n
Perimeter 84524820
Area 446527824752025
Diagonal 29884036.700286

Cube

Length = n
Surface area 2679166948512150
Volume 9.4356710030391E+21
Space diagonal 36600320.685153

Equilateral Triangle

Length = n
Perimeter 63393615
Area 1.9335221986593E+14
Altitude 18300160.342577

Triangular Pyramid

Length = n
Surface area 1.9335221986593E+14
Volume 1.1120044918824E+21
Height 9961345.5667621