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

20809989 (number)

20809989 is an odd 8-digits composite number following 20809988 and preceding 20809990. In scientific notation, it is written as 2.0809989 × 10^7. The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors. There are 13057152 positive integers (up to 20809989) that are relatively prime to 20809989.

Interesting facts

20809989 has 8 divisors, whose sum is 24482520
The reverse of 20809989 is 98990802
Previous prime number is 17

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9

Name

Name	twenty million eight hundred nine thousand nine hundred eighty-nine

Notation

Scientific notation	2.0809989 × 10^7
Engineering notation	2.0809989 × 10^6

Prime Factorization of 20809989

Prime Factorization 9 × 17 × 136013

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20809989	Product of the distinct prime numbers

The prime factorization of 20809989 is 9 × 17 × 136013. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 6, 73, 30, 502, 456, 1666, 2548, 96399, 21979, 715206, 975822, 6569466, 7253638, 46324142, 32417071, 785471016, 650758052, 5548902360, 8954506004

Basic calculations (n = 20809989)

Multiplication

n×y

n×2	41619978
n×3	62429967
n×4	83239956
n×5	104049945

Division

n÷y

n÷2	10404994.5
n÷3	6936663
n÷3	5202497.25
n÷5	4161997.8

Exponentiation

n^y

n²	433055642180121
n³	9.0118831501563E+21
n⁴	1.8753718922404E+29
n⁵	3.9026468448431E+36

Nth Root

^y√n

²√n	4561.7966855177
³√n	275.05779060941
⁴√n	67.541074062512
⁵√n	29.084015681158

Divisors of 20809989

1, 9, 17, 153, 136013, 1224117, 2312221, 20809989

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	-20809988	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 20809989 can be divided by 8 positive divisors. The sum of these divisors (counting 20809989) is 1, the average is 0.125.

Base conversion 20809989

Base	System	Value
2	Binary	1001111011000100100000101
3	Ternary	1110011020221100
4	Quaternary	1033120210011
5	Quinary	20311404424
6	Senary	2022010313
8	Octal	117304405
10	Decimal	20809989
12	Duodecimal	6b76999
16	Hexadecimal	13d8905
20	Vigesimal	6a14j9
36	Base36	ce139

Cryptographic Hash Functions

md5	72575bdb0321204c19a75a23e29f7608
sha1	a046eb26c2bc40076322dce298c06c1719d1b73a
sha256	62b1788073b8a49cbd7c1bea1b5bf26cba5cac669d6d9f452c71a12070e0fef9
sha512	d961eed759c39f11df82fd9b2b0d858c332843fb7d60f72d444414d2c627211d1fa77c2fcf3a2ee35ff9ddc8131a8757710af349528557b5579a6d9182866714
ripemd-160	ba3c67a24043cef9642652021050c36a07645f28

20809989 as geometric shapes

Circle

Radius = n

Diameter	41619978
Circumference	130753017.12737
Area	1.3604844240687E+15

Sphere

Radius = n

Volume	3.7748887866054E+22
Surface area	5.4419376962747E+15
Circumference	130753017.12737

Square

Length = n

Perimeter	83239956
Area	433055642180121
Diagonal	29429768.676635

Cube

Length = n

Surface area	2598333853080726
Volume	9.0118831501563E+21
Space diagonal	36043958.252949

Equilateral Triangle

Length = n

Perimeter	62429967
Area	1.8751859369008E+14
Altitude	18021979.126475

Triangular Pyramid

Length = n

Surface area	1.8751859369008E+14
Volume	1.062060614456E+21
Height	9809922.8922116