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

81664265 (number)

81664265 is an odd 8-digits composite number following 81664264 and preceding 81664266. In scientific notation, it is written as 8.1664265 × 10^7. The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors. There are 65299072 positive integers (up to 81664265) that are relatively prime to 81664265.

Interesting facts

81664265 has 8 divisors, whose sum is 98045640
The reverse of 81664265 is 56246618
Previous prime number is 4157

Basic properties

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

Name

Name	eighty-one million six hundred sixty-four thousand two hundred sixty-five

Notation

Scientific notation	8.1664265 × 10^7
Engineering notation	8.1664265 × 10^6

Prime Factorization of 81664265

Prime Factorization 5 × 4157 × 3929

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81664265	Product of the distinct prime numbers

The prime factorization of 81664265 is 5 × 4157 × 3929. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 4, 19, 63, 977, 341, 8368, 4340, 86158, 87527, 76255, 961124, 3140345, 3608474, 55256601, 55556097, 993415715, 152704153, 9755300778, 4560063326

Basic calculations (n = 81664265)

Multiplication

n×y

n×2	163328530
n×3	244992795
n×4	326657060
n×5	408321325

Division

n÷y

n÷2	40832132.5
n÷3	27221421.666667
n÷3	20416066.25
n÷5	16332853

Exponentiation

n^y

n²	6669052177990225
n³	5.4462324436222E+23
n⁴	4.4476256952756E+31
n⁵	3.632120833998E+39

Nth Root

^y√n

²√n	9036.8282599594
³√n	433.85441293158
⁴√n	95.062233615455
⁵√n	38.230186048304

Divisors of 81664265

1, 5, 3929, 4157, 19645, 20785, 16332853, 81664265

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	-81664264	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 81664265 can be divided by 8 positive divisors. The sum of these divisors (counting 81664265) is 1, the average is 0.125.

Base conversion 81664265

Base	System	Value
2	Binary	100110111100001100100001001
3	Ternary	12200122222022102
4	Quaternary	10313201210021
5	Quinary	131401224030
6	Senary	12034203145
8	Octal	467414411
10	Decimal	81664265
12	Duodecimal	234234b5
16	Hexadecimal	4de1909
20	Vigesimal	15a80d5
36	Base36	1cmcjt

Cryptographic Hash Functions

md5	81862b64398d0afa615536a45e5117f2
sha1	415768b7fa37ba4c527836afe56368ca0c345b4f
sha256	4f7d747abad2b89ef2c4b79f73575c12e2fedfe8f2350577d400f39685716e4b
sha512	a4e6409d0648256139d805e329219e414d4dc449e456417ed03891368d770620c55befd6df0db63e7138df2ed6d769faca5363da8c4c045c3e6a25c90473fa18
ripemd-160	2e3e293e4e6e5d8a4ddfc9c9b5b460ea3702c339

81664265 as geometric shapes

Circle

Radius = n

Diameter	163328530
Circumference	513111709.96962
Area	2.0951445328781E+16

Sphere

Radius = n

Volume	2.2813125112835E+24
Surface area	8.3805781315124E+16
Circumference	513111709.96962

Square

Length = n

Perimeter	326657060
Area	6669052177990225
Diagonal	115490711.12423

Cube

Length = n

Surface area	40014313067941350
Volume	5.4462324436222E+23
Space diagonal	141446656.14277

Equilateral Triangle

Length = n

Perimeter	244992795
Area	2.8877843026517E+15
Altitude	70723328.071384

Triangular Pyramid

Length = n

Surface area	2.8877843026517E+15
Volume	6.4184464880057E+22
Height	38496903.708077