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

81640265 (number)

81640265 is an odd 8-digits composite number following 81640264 and preceding 81640266. In scientific notation, it is written as 8.1640265 × 10^7. The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors. There are 55062720 positive integers (up to 81640265) that are relatively prime to 81640265.

Interesting facts

81640265 has 8 divisors, whose sum is 85351680
The reverse of 81640265 is 56204618
Previous prime number is 61

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5

Name

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

Notation

Scientific notation	8.1640265 × 10^7
Engineering notation	8.1640265 × 10^6

Prime Factorization of 81640265

Prime Factorization 35 × 61 × 38239

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81640265	Product of the distinct prime numbers

The prime factorization of 81640265 is 35 × 61 × 38239. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 8, 89, 3, 374, 240, 6968, 4305, 91673, 12341, 641768, 930562, 2057975, 6529965, 42723242, 52993751, 326799469, 406104976, 5180665025, 2842933206

Basic calculations (n = 81640265)

Multiplication

n×y

n×2	163280530
n×3	244920795
n×4	326561060
n×5	408201325

Division

n÷y

n÷2	40820132.5
n÷3	27213421.666667
n÷3	20410066.25
n÷5	16328053

Exponentiation

n^y

n²	6665132869270225
n³	5.4414321370743E+23
n⁴	4.4423996165026E+31
n⁵	3.6267868192717E+39

Nth Root

^y√n

²√n	9035.5002628521
³√n	433.81190749338
⁴√n	95.055248476095
⁵√n	38.227938719333

Divisors of 81640265

1, 35, 61, 2135, 38239, 1338365, 2332579, 81640265

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	-81640264	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 81640265 can be divided by 8 positive divisors. The sum of these divisors (counting 81640265) is 1, the average is 0.125.

Base conversion 81640265

Base	System	Value
2	Binary	100110111011011101101001001
3	Ternary	12200121202101112
4	Quaternary	10313123231021
5	Quinary	131344442030
6	Senary	12033500105
8	Octal	467335511
10	Decimal	81640265
12	Duodecimal	23411635
16	Hexadecimal	4ddbb49
20	Vigesimal	15a50d5
36	Base36	1clu15

Cryptographic Hash Functions

md5	3158cb9efc623d756726d03a73a8cbb4
sha1	e56f883509aa781059d76ba8152eee8b4c70e18d
sha256	5f225e3e058366a61d9196354099ee86a2c147564fc00cc6188af0788b1dd272
sha512	5e1973b0e69c4a581a197dd6adc8a77cda5e4b196e605d562696971bfa473252add9adaa3ec69bd92dfdaa16039d0b4b79ce8f2b920f09f5b38f7a7b2ec92c5c
ripemd-160	2fabf89ccce3e0bed55d153346f3a47c2586c182

81640265 as geometric shapes

Circle

Radius = n

Diameter	163280530
Circumference	512960913.52225
Area	2.0939132457299E+16

Sphere

Radius = n

Volume	2.2793017635787E+24
Surface area	8.3756529829197E+16
Circumference	512960913.52225

Square

Length = n

Perimeter	326561060
Area	6665132869270225
Diagonal	115456769.99873

Cube

Length = n

Surface area	39990797215621350
Volume	5.4414321370743E+23
Space diagonal	141405086.92339

Equilateral Triangle

Length = n

Perimeter	244920795
Area	2.8860871921933E+15
Altitude	70702543.461694

Triangular Pyramid

Length = n

Surface area	2.8860871921933E+15
Volume	6.4127892724861E+22
Height	38485589.999578