Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

21081812 (number)

21081812 is an even 8-digits composite number following 21081811 and preceding 21081813. In scientific notation, it is written as 2.1081812 × 10^7. The sum of its digits is 23. It has a total of 3 prime factors and 6 positive divisors. There are 10540904 positive integers (up to 21081812) that are relatively prime to 21081812.

Interesting facts

21081812 has 6 divisors, whose sum is 36893178
The reverse of 21081812 is 21818012
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5

Name

Name	twenty-one million eighty-one thousand eight hundred twelve

Notation

Scientific notation	2.1081812 × 10^7
Engineering notation	2.1081812 × 10^6

Prime Factorization of 21081812

Prime Factorization 2 × 2 × 5270453

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	10540906	Product of the distinct prime numbers

The prime factorization of 21081812 is 2 × 2 × 5270453. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 10, 22, 34, 532, 591, 6622, 9973, 9794, 66706, 307296, 268844, 106414, 4377715, 38576633, 30930677, 228081732, 332948774, 2704689987, 8139438511

Basic calculations (n = 21081812)

Multiplication

n×y

n×2	42163624
n×3	63245436
n×4	84327248
n×5	105409060

Division

n÷y

n÷2	10540906
n÷3	7027270.6666667
n÷3	5270453
n÷5	4216362.4

Exponentiation

n^y

n²	444442797203344
n³	9.369659495395E+21
n⁴	1.9752939998593E+29
n⁵	4.1642776749762E+36

Nth Root

^y√n

²√n	4591.4934389586
³√n	276.25022815512
⁴√n	67.760559612201
⁵√n	29.159601680009

Divisors of 21081812

1, 2, 4, 5270453, 10540906, 21081812

6 divisors

τ	Total Divisors	6	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21081811	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.16666666666667	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	6	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21081812 can be divided by 6 positive divisors. The sum of these divisors (counting 21081812) is 1, the average is 0.16666666666667.

Base conversion 21081812

Base	System	Value
2	Binary	1010000011010111011010100
3	Ternary	1110200001210212
4	Quaternary	1100122323110
5	Quinary	20344104222
6	Senary	2031504552
8	Octal	120327324
10	Decimal	21081812
12	Duodecimal	7088158
16	Hexadecimal	141aed4
20	Vigesimal	6bf4ac
36	Base36	cjutw

Cryptographic Hash Functions

md5	24d3731c0ecfa1f5b628605de52890a2
sha1	471548edaf6f7bee494cfc018af908fb3063e9d0
sha256	ee5b33ebda51f29e0d9733068a9d2cf37cf35eee86608ff0e1670229e7f1d9ac
sha512	4042e5e24cf34de9288178314139c5ba8bcdd5971aef96ef31d79186dd197c15ecf229e69fb35a84e77358ab3243e79c64dcc5bedc589b9ceca7f0d47a45c718
ripemd-160	1d974745308c82bd901e4d41de112a3d2c18ef5b

21081812 as geometric shapes

Circle

Radius = n

Diameter	42163624
Circumference	132460931.40712
Area	1.3962582266349E+15

Sphere

Radius = n

Volume	3.9247537916494E+22
Surface area	5.5850329065397E+15
Circumference	132460931.40712

Square

Length = n

Perimeter	84327248
Area	444442797203344
Diagonal	29814184.4498

Cube

Length = n

Surface area	2666656783220064
Volume	9.369659495395E+21
Space diagonal	36514769.499615

Equilateral Triangle

Length = n

Perimeter	63245436
Area	1.9244937645356E+14
Altitude	18257384.749808

Triangular Pyramid

Length = n

Surface area	1.9244937645356E+14
Volume	1.1042249611005E+21
Height	9938061.4832666