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

20809955 (number)

20809955 is an odd 8-digits composite number following 20809954 and preceding 20809956. In scientific notation, it is written as 2.0809955 × 10^7. The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors. There are 15332352 positive integers (up to 20809955) that are relatively prime to 20809955.

Interesting facts

20809955 has 8 divisors, whose sum is 21506880
The reverse of 20809955 is 55990802
Previous prime number is 47

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2

Name

Name	twenty million eight hundred nine thousand nine hundred fifty-five

Notation

Scientific notation	2.0809955 × 10^7
Engineering notation	2.0809955 × 10^6

Prime Factorization of 20809955

Prime Factorization 85 × 47 × 5209

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20809955	Product of the distinct prime numbers

The prime factorization of 20809955 is 85 × 47 × 5209. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 2, 72, 64, 435, 721, 9164, 3775, 21513, 45817, 43545, 300910, 9353005, 8469983, 7011421, 64910550, 836090436, 383461574, 2389319684, 5405944432

Basic calculations (n = 20809955)

Multiplication

n×y

n×2	41619910
n×3	62429865
n×4	83239820
n×5	104049775

Division

n÷y

n÷2	10404977.5
n÷3	6936651.6666667
n÷3	5202488.75
n÷5	4161991

Exponentiation

n^y

n²	433054227102025
n³	9.0118389785529E+21
n⁴	1.8753596361093E+29
n⁵	3.9026149636251E+36

Nth Root

^y√n

²√n	4561.7929589143
³√n	275.05764081003
⁴√n	67.541046474824
⁵√n	29.08400617748

Divisors of 20809955

1, 47, 85, 3995, 5209, 244823, 442765, 20809955

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	-20809954	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 20809955 can be divided by 8 positive divisors. The sum of these divisors (counting 20809955) is 1, the average is 0.125.

Base conversion 20809955

Base	System	Value
2	Binary	1001111011000100011100011
3	Ternary	1110011020220002
4	Quaternary	1033120203203
5	Quinary	20311404310
6	Senary	2022010215
8	Octal	117304343
10	Decimal	20809955
12	Duodecimal	6b7696b
16	Hexadecimal	13d88e3
20	Vigesimal	6a14hf
36	Base36	ce12b

Cryptographic Hash Functions

md5	9031eb339f442c27b402ae618673a55e
sha1	3816c7b27bf28930a6f211cb09f681245d16afbd
sha256	1ac6d23502721462fa5cd2ddbbf14d84bf83a882a471eb78aa973972a848e270
sha512	d79a8a6ff15d98bbd9bd5f4c2a82ea7dae1bc6a9564f5dfc4a85ea825726d2fa9a03ebed46126eb715d810198688bd3eabf2479f8b2dc02b08cc9a3690cf42ad
ripemd-160	e896e4bfa3371165da475b4428014e6811838747

20809955 as geometric shapes

Circle

Radius = n

Diameter	41619910
Circumference	130752803.49907
Area	1.3604799784697E+15

Sphere

Radius = n

Volume	3.7748702840475E+22
Surface area	5.4419199138789E+15
Circumference	130752803.49907

Square

Length = n

Perimeter	83239820
Area	433054227102025
Diagonal	29429720.593374

Cube

Length = n

Surface area	2598325362612150
Volume	9.0118389785529E+21
Space diagonal	36043899.363222

Equilateral Triangle

Length = n

Perimeter	62429865
Area	1.8751798094329E+14
Altitude	18021949.681611

Triangular Pyramid

Length = n

Surface area	1.8751798094329E+14
Volume	1.0620554087827E+21
Height	9809906.8644579