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

81609909 (number)

81609909 is an odd 8-digits composite number following 81609908 and preceding 81609910. In scientific notation, it is written as 8.1609909 × 10^7. The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors. There are 54382320 positive integers (up to 81609909) that are relatively prime to 81609909.

Interesting facts

81609909 has 8 divisors, whose sum is 108861792
The reverse of 81609909 is 90990618
Previous prime number is 2963

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6

Name

Name	eighty-one million six hundred nine thousand nine hundred nine

Notation

Scientific notation	8.1609909 × 10^7
Engineering notation	8.1609909 × 10^6

Prime Factorization of 81609909

Prime Factorization 3 × 2963 × 9181

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81609909	Product of the distinct prime numbers

The prime factorization of 81609909 is 3 × 2963 × 9181. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 1, 89, 23, 97, 163, 7639, 1217, 38687, 3744, 574805, 895517, 2419943, 5097362, 91487602, 19540905, 445396291, 741128460, 9444108604, 1817991611

Basic calculations (n = 81609909)

Multiplication

n×y

n×2	163219818
n×3	244829727
n×4	326439636
n×5	408049545

Division

n÷y

n÷2	40804954.5
n÷3	27203303
n÷3	20402477.25
n÷5	16321981.8

Exponentiation

n^y

n²	6660177246988281
n³	5.4353645905058E+23
n⁴	4.43579609613E+31
n⁵	3.6200491574773E+39

Nth Root

^y√n

²√n	9033.820288228
³√n	433.75813326498
⁴√n	95.046411232766
⁵√n	38.225095465602

Divisors of 81609909

1, 3, 2963, 8889, 9181, 27543, 27203303, 81609909

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	-81609908	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 81609909 can be divided by 8 positive divisors. The sum of these divisors (counting 81609909) is 1, the average is 0.125.

Base conversion 81609909

Base	System	Value
2	Binary	100110111010100010010110101
3	Ternary	12200120012202020
4	Quaternary	10313110102311
5	Quinary	131343004114
6	Senary	12033103353
8	Octal	467242265
10	Decimal	81609909
12	Duodecimal	233b7b59
16	Hexadecimal	4dd44b5
20	Vigesimal	15a14f9
36	Base36	1cl6lx

Cryptographic Hash Functions

md5	92a0b490c9541d1c84b4d44f52bda4e5
sha1	893deca64ec14a132d1510271ef7aaf8991b4673
sha256	064b6d31c0479cc219a7444132d4727c6762e79e34a1b65bf62ff21be2e4b4db
sha512	1252a9cd72017abcdf10f2f0d83a07c48bbb275584b8a6793de61c0c60f0563805f8b7c10a9e8467c81b25f63f41356769d69340ec0023778f1915d5cbfa2085
ripemd-160	15d059f421835696c9a366d5e0020715c0518aa7

81609909 as geometric shapes

Circle

Radius = n

Diameter	163219818
Circumference	512770181.14906
Area	2.0923563910744E+16

Sphere

Radius = n

Volume	2.2767601956154E+24
Surface area	8.3694255642977E+16
Circumference	512770181.14906

Square

Length = n

Perimeter	326439636
Area	6660177246988281
Diagonal	115413840.13183

Cube

Length = n

Surface area	39961063481929686
Volume	5.4353645905058E+23
Space diagonal	141352508.78907

Equilateral Triangle

Length = n

Perimeter	244829727
Area	2.8839413447995E+15
Altitude	70676254.394536

Triangular Pyramid

Length = n

Surface area	2.8839413447995E+15
Volume	6.4056386002799E+22
Height	38471280.043945