21207830 (number)

21207830 is an even 8-digits composite number following 21207829 and preceding 21207831. In scientific notation, it is written as 2.1207830 × 10^7. The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors. There are 7271232 positive integers (up to 21207830) that are relatively prime to 21207830.

Interesting facts

Basic properties

Name

Name twenty-one million two hundred seven thousand eight hundred thirty

Notation

Scientific notation 2.1207830 × 10^7
Engineering notation 2.1207830 × 10^6

Prime Factorization of 21207830

Prime Factorization 2 × 5 × 7 × 302969

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21207830
Product of the distinct prime numbers

The prime factorization of 21207830 is 2 × 5 × 7 × 302969. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 10, 69, 34, 910, 446, 5359, 5007, 45732, 39350, 666588, 134300, 485670, 3773621, 94220798, 87196414, 415326887, 339403119, 3429663237, 8996204368

Basic calculations (n = 21207830)

Multiplication

n×y
n×2 42415660
n×3 63623490
n×4 84831320
n×5 106039150

Division

n÷y
n÷2 10603915
n÷3 7069276.6666667
n÷3 5301957.5
n÷5 4241566

Exponentiation

ny
n2 449772053308900
n3 9.5386892453261E+21
n4 2.022948999377E+29
n5 4.2902358477458E+36

Nth Root

y√n
2√n 4605.1959784574
3√n 276.79957002339
4√n 67.861594281724
5√n 29.194379334901

Divisors of 21207830

1, 2, 5, 7, 10, 14, 35, 70, 302969, 605938, 1514845, 2120783, 3029690, 4241566, 10603915, 21207830

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 -21207829
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 21207830 can be divided by 16 positive divisors. The sum of these divisors (counting 21207830) is 1, the average is 0.0625.

Base conversion 21207830

Base System Value
2 Binary 1010000111001101100010110
3 Ternary 1110220110200012
4 Quaternary 1100321230112
5 Quinary 20412122310
6 Senary 2034320222
8 Octal 120715426
10 Decimal 21207830
12 Duodecimal 7129072
16 Hexadecimal 1439b16
20 Vigesimal 6cajba
36 Base36 cmk2e

Cryptographic Hash Functions

md5 30f3c7e16cbc5fa6e106910afe8a6148
sha1 0dd22fb12764470a6a893369592532b59ef076fa
sha256 8d961cee02636b15ea5d393737c01a46c597af4c08aad11c93222bd0b533c3d9
sha512 d879dfe27d30218528a44c9755cbc86e8eeb6234ca9830e40da6f861857469e73436548d1bae93753b999bb9182c104d289fded6c64e6d979cb8c47d9d0541e8
ripemd-160 b24c91f54760a3cc94be93c73b65b2fae8045a47

21207830 as geometric shapes

Circle

Radius = n
Diameter 42415660
Circumference 133252725.85316
Area 1.4130005784652E+15

Sphere

Radius = n
Volume 3.9955568077323E+22
Surface area 5.6520023138609E+15
Circumference 133252725.85316

Square

Length = n
Perimeter 84831320
Area 449772053308900
Diagonal 29992400.814503

Cube

Length = n
Surface area 2698632319853400
Volume 9.5386892453261E+21
Space diagonal 36733039.078283

Equilateral Triangle

Length = n
Perimeter 63623490
Area 1.947570120389E+14
Altitude 18366519.539142

Triangular Pyramid

Length = n
Surface area 1.947570120389E+14
Volume 1.1241453081669E+21
Height 9997466.9381677