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

21081618 (number)

21081618 is an even 8-digits composite number following 21081617 and preceding 21081619. In scientific notation, it is written as 2.1081618 × 10^7. The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors. There are 7027200 positive integers (up to 21081618) that are relatively prime to 21081618.

Interesting facts

21081618 has 8 divisors, whose sum is 35136060
The reverse of 21081618 is 81618012
Previous prime number is 9

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9

Name

Name	twenty-one million eighty-one thousand six hundred eighteen

Notation

Scientific notation	2.1081618 × 10^7
Engineering notation	2.1081618 × 10^6

Prime Factorization of 21081618

Prime Factorization 2 × 9 × 1171201

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21081618	Product of the distinct prime numbers

The prime factorization of 21081618 is 2 × 9 × 1171201. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 5, 39, 58, 200, 597, 6467, 138, 53293, 29990, 245012, 589971, 1970411, 3745751, 82200905, 67776591, 982472587, 116451301, 5680434206, 9024797107

Basic calculations (n = 21081618)

Multiplication

n×y

n×2	42163236
n×3	63244854
n×4	84326472
n×5	105408090

Division

n÷y

n÷2	10540809
n÷3	7027206
n÷3	5270404.5
n÷5	4216323.6

Exponentiation

n^y

n²	444434617497924
n³	9.3694008320674E+21
n⁴	1.9752212923053E+29
n⁵	4.1640860749846E+36

Nth Root

^y√n

²√n	4591.4723128861
³√n	276.24938077842
⁴√n	67.760403724344
⁵√n	29.159548013051

Divisors of 21081618

1, 2, 9, 18, 1171201, 2342402, 10540809, 21081618

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21081617	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21081618 can be divided by 8 positive divisors. The sum of these divisors (counting 21081618) is 1, the average is 0.125.

Base conversion 21081618

Base	System	Value
2	Binary	1010000011010111000010010
3	Ternary	1110200001112200
4	Quaternary	1100122320102
5	Quinary	20344102433
6	Senary	2031504030
8	Octal	120327022
10	Decimal	21081618
12	Duodecimal	7088016
16	Hexadecimal	141ae12
20	Vigesimal	6bf40i
36	Base36	cjuoi

Cryptographic Hash Functions

md5	d904158fa860007c0994a476ec5ae039
sha1	15706eeaff6b43e584aa1b0f25147cba858d4888
sha256	7467c3bc26022a630adaa2728bfcd578c60c39cfbbd52d62d0197dd1a0e588ee
sha512	a391b180f333a3d0d0f98e4a489f88ee01e9f933c7f7d782b278b64c2fb0004a722f0a78e01c876627a08d7e08b7cac23729554a4289497bb26b3a55de35dc15
ripemd-160	3beef1706ae39737617cddd4e12aaaf5064718ed

21081618 as geometric shapes

Circle

Radius = n

Diameter	42163236
Circumference	132459712.46917
Area	1.3962325293325E+15

Sphere

Radius = n

Volume	3.9246454430081E+22
Surface area	5.5849301173299E+15
Circumference	132459712.46917

Square

Length = n

Perimeter	84326472
Area	444434617497924
Diagonal	29813910.092369

Cube

Length = n

Surface area	2666607704987544
Volume	9.3694008320674E+21
Space diagonal	36514433.481759

Equilateral Triangle

Length = n

Perimeter	63244854
Area	1.9244583453721E+14
Altitude	18257216.740879

Triangular Pyramid

Length = n

Surface area	1.9244583453721E+14
Volume	1.104194477335E+21
Height	9937970.0307896