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

21081008 (number)

21081008 is an even 8-digits composite number following 21081007 and preceding 21081009. In scientific notation, it is written as 2.1081008 × 10^7. The sum of its digits is 20. It has a total of 7 prime factors and 40 positive divisors. There are 9499392 positive integers (up to 21081008) that are relatively prime to 21081008.

Interesting facts

21081008 has 40 divisors, whose sum is 45028368
The reverse of 21081008 is 80018012
Previous prime number is 43

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2

Name

Name	twenty-one million eighty-one thousand eight

Notation

Scientific notation	2.1081008 × 10^7
Engineering notation	2.1081008 × 10^6

Prime Factorization of 21081008

Prime Factorization 2 × 2 × 2 × 2 × 13 × 43 × 2357

Composite number

ω	Distinct Factors	4	Total number of distinct prime factors
Ω	Total Factors	7	Total number of prime factors
rad	Radical	2635126	Product of the distinct prime numbers

The prime factorization of 21081008 is 2 × 2 × 2 × 2 × 13 × 43 × 2357. Since it has a total of 7 prime factors.

Most popular turbo-numbers

8, 2, 7, 27, 491, 150, 1142, 9475, 31257, 43015, 703142, 36293, 3081550, 7945754, 32447154, 84980591, 763379059, 885215501, 5893881246, 7240117246

Basic calculations (n = 21081008)

Multiplication

n×y

n×2	42162016
n×3	63243024
n×4	84324032
n×5	105405040

Division

n÷y

n÷2	10540504
n÷3	7027002.6666667
n÷3	5270252
n÷5	4216201.6

Exponentiation

n^y

n²	444408898296064
n³	9.3685875402505E+21
n⁴	1.9749926888472E+29
n⁵	4.163483667353E+36

Nth Root

^y√n

²√n	4591.4058849115
³√n	276.24671631267
⁴√n	67.759913554487
⁵√n	29.159379263858

Divisors of 21081008

1, 2, 4, 8, 13, 16, 26, 43, 52, 86, 104, 172, 208, 344, 559, 688, 1118, 2236, 2357, 4472, 4714, 8944, 9428, 18856, 30641, 37712, 61282, 101351, 122564, 202702, 245128, 405404, 490256, 810808, 1317563, 1621616, 2635126, 5270252, 10540504, 21081008

40 divisors

τ	Total Divisors	40	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21081007	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.025	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	40	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21081008 can be divided by 40 positive divisors. The sum of these divisors (counting 21081008) is 1, the average is 0.025.

Base conversion 21081008

Base	System	Value
2	Binary	1010000011010101110110000
3	Ternary	1110200000201002
4	Quaternary	1100122232300
5	Quinary	20344043013
6	Senary	2031501132
8	Octal	120325660
10	Decimal	21081008
12	Duodecimal	70877a8
16	Hexadecimal	141abb0
20	Vigesimal	6bf2a8
36	Base36	cju7k

Cryptographic Hash Functions

md5	1976c126151509244d2493df28b95257
sha1	a0a1dd7df77dda778f0e57234e5a45d755979456
sha256	75ef6ab6a74a96f9575ace839815c42d25f6543ba82135c875dc3384c0e4452e
sha512	ef5035f8955a50fb0ea5552de83d7ffdb3ca6fc8f4348c71b841a3ec81d83cee9000cd54aad7ced232899b0cf02ad92186d210e6e8993506ba372e9068e28a29
ripemd-160	2b9d2adc885cfefe87275233e4c0d67139c45c37

21081008 as geometric shapes

Circle

Radius = n

Diameter	42162016
Circumference	132455879.72614
Area	1.3961517300768E+15

Sphere

Radius = n

Volume	3.9243047721285E+22
Surface area	5.5846069203074E+15
Circumference	132455879.72614

Square

Length = n

Perimeter	84324032
Area	444408898296064
Diagonal	29813047.422096

Cube

Length = n

Surface area	2666453389776384
Volume	9.3685875402505E+21
Space diagonal	36513376.930766

Equilateral Triangle

Length = n

Perimeter	63243024
Area	1.9243469779612E+14
Altitude	18256688.465383

Triangular Pyramid

Length = n

Surface area	1.9243469779612E+14
Volume	1.1040986299752E+21
Height	9937682.4740319