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

20808865 (number)

20808865 is an odd 8-digits composite number following 20808864 and preceding 20808866. In scientific notation, it is written as 2.0808865 × 10^7. The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors. There are 12971520 positive integers (up to 20808865) that are relatively prime to 20808865.

Interesting facts

20808865 has 8 divisors, whose sum is 24214400
The reverse of 20808865 is 56880802
Previous prime number is 7

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1

Name

Name	twenty million eight hundred eight thousand eight hundred sixty-five

Notation

Scientific notation	2.0808865 × 10^7
Engineering notation	2.0808865 × 10^6

Prime Factorization of 20808865

Prime Factorization 55 × 7 × 54049

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20808865	Product of the distinct prime numbers

The prime factorization of 20808865 is 55 × 7 × 54049. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 8, 72, 14, 657, 962, 9946, 2058, 13389, 18824, 64686, 610361, 5690198, 1965150, 55783175, 68435516, 706026700, 825151881, 6168933265, 7641219537

Basic calculations (n = 20808865)

Multiplication

n×y

n×2	41617730
n×3	62426595
n×4	83235460
n×5	104044325

Division

n÷y

n÷2	10404432.5
n÷3	6936288.3333333
n÷3	5202216.25
n÷5	4161773

Exponentiation

n^y

n²	433008862588225
n³	9.0104229654019E+21
n⁴	1.8749667507995E+29
n⁵	3.9015929996875E+36

Nth Root

^y√n

²√n	4561.6734867809
³√n	275.05283833187
⁴√n	67.540162028092
⁵√n	29.08370149416

Divisors of 20808865

1, 7, 55, 385, 54049, 378343, 2972695, 20808865

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	-20808864	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 20808865 can be divided by 8 positive divisors. The sum of these divisors (counting 20808865) is 1, the average is 0.125.

Base conversion 20808865

Base	System	Value
2	Binary	1001111011000010010100001
3	Ternary	1110011012101201
4	Quaternary	1033120102201
5	Quinary	20311340430
6	Senary	2022001201
8	Octal	117302241
10	Decimal	20808865
12	Duodecimal	6b76201
16	Hexadecimal	13d84a1
20	Vigesimal	6a1235
36	Base36	ce081

Cryptographic Hash Functions

md5	cef639475eb892f2028a9db3b69c55ed
sha1	072fa252ed854930e83ec95e448c8f17356b7d82
sha256	31885a033018b531e2d2ea0c688259caaca2143e706af96dde8e571fb62a614e
sha512	402be2992896d1883fb32eca478328f955a3a1b44703e0f9f0b704b2a34469f67745bb67bb3601e001f52c5a891d933db0e9b33326f25d45a0d8c9cb4f72b563
ripemd-160	ad96615deef52fc6fcac6b3324830ef26f1f4063

20808865 as geometric shapes

Circle

Radius = n

Diameter	41617730
Circumference	130745954.82708
Area	1.3603374616464E+15

Sphere

Radius = n

Volume	3.7742771458458E+22
Surface area	5.4413498465858E+15
Circumference	130745954.82708

Square

Length = n

Perimeter	83235460
Area	433008862588225
Diagonal	29428179.100591

Cube

Length = n

Surface area	2598053175529350
Volume	9.0104229654019E+21
Space diagonal	36042011.427842

Equilateral Triangle

Length = n

Perimeter	62426595
Area	1.874983375326E+14
Altitude	18021005.713921

Triangular Pyramid

Length = n

Surface area	1.874983375326E+14
Volume	1.0618885300325E+21
Height	9809393.0335303