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

21081807 (number)

21081807 is an odd 8-digits composite number following 21081806 and preceding 21081808. In scientific notation, it is written as 2.1081807 × 10^7. The sum of its digits is 27. It has a total of 3 prime factors and 6 positive divisors. There are 14054532 positive integers (up to 21081807) that are relatively prime to 21081807.

Interesting facts

21081807 has 6 divisors, whose sum is 30451512
The reverse of 21081807 is 70818012
Previous prime number is 3

Basic properties

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

Name

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

Notation

Scientific notation	2.1081807 × 10^7
Engineering notation	2.1081807 × 10^6

Prime Factorization of 21081807

Prime Factorization 3 × 3 × 2342423

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	7027269	Product of the distinct prime numbers

The prime factorization of 21081807 is 3 × 3 × 2342423. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 7, 50, 12, 10, 728, 2924, 2499, 95364, 27419, 963993, 973599, 192610, 7315030, 20262810, 92402630, 155096212, 438994302, 4241398249, 9470615008

Basic calculations (n = 21081807)

Multiplication

n×y

n×2	42163614
n×3	63245421
n×4	84327228
n×5	105409035

Division

n÷y

n÷2	10540903.5
n÷3	7027269
n÷3	5270451.75
n÷5	4216361.4

Exponentiation

n^y

n²	444442586385249
n³	9.3696528287546E+21
n⁴	1.9752921259281E+29
n⁵	4.1642727367436E+36

Nth Root

^y√n

²√n	4591.4928944734
³√n	276.25020631558
⁴√n	67.760555594486
⁵√n	29.159600296845

Divisors of 21081807

1, 3, 9, 2342423, 7027269, 21081807

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	-21081806	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 21081807 can be divided by 6 positive divisors. The sum of these divisors (counting 21081807) is 1, the average is 0.16666666666667.

Base conversion 21081807

Base	System	Value
2	Binary	1010000011010111011001111
3	Ternary	1110200001210200
4	Quaternary	1100122323033
5	Quinary	20344104212
6	Senary	2031504543
8	Octal	120327317
10	Decimal	21081807
12	Duodecimal	7088153
16	Hexadecimal	141aecf
20	Vigesimal	6bf4a7
36	Base36	cjutr

Cryptographic Hash Functions

md5	1a17c9879d9d61042325daccd37caff2
sha1	66333a000cd768e5be4e75acdb1c54faa73665e2
sha256	20a2cd12e8be4bc643ef59fa5aa6cdc91b6bf41575d6d2ac5aea50956b678534
sha512	6db61231f1d73528d7a5bd3433a912fdf614750036b9c163a5ea138195b4783e880c000fe2fb828a6106e90156c000ce067a4109c150cb2e01d6ff59c0bb23fd
ripemd-160	6329692dd1f16abdc75246989f59ffe84fb3ba77

21081807 as geometric shapes

Circle

Radius = n

Diameter	42163614
Circumference	132460899.9912
Area	1.3962575643303E+15

Sphere

Radius = n

Volume	3.9247509991337E+22
Surface area	5.5850302573214E+15
Circumference	132460899.9912

Square

Length = n

Perimeter	84327228
Area	444442586385249
Diagonal	29814177.378732

Cube

Length = n

Surface area	2666655518311494
Volume	9.3696528287546E+21
Space diagonal	36514760.839361

Equilateral Triangle

Length = n

Perimeter	63245421
Area	1.9244928516664E+14
Altitude	18257380.419681

Triangular Pyramid

Length = n

Surface area	1.9244928516664E+14
Volume	1.1042241754294E+21
Height	9938059.126244