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

81321566 (number)

81321566 is an even 8-digits composite number following 81321565 and preceding 81321567. In scientific notation, it is written as 8.1321566 × 10^7. The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors. There are 40629960 positive integers (up to 81321566) that are relatively prime to 81321566.

Interesting facts

81321566 has 8 divisors, whose sum is 122074824
The reverse of 81321566 is 66512318
Previous prime number is 1381

Basic properties

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

Name

Name	eighty-one million three hundred twenty-one thousand five hundred sixty-six

Notation

Scientific notation	8.1321566 × 10^7
Engineering notation	8.1321566 × 10^6

Prime Factorization of 81321566

Prime Factorization 2 × 1381 × 29443

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81321566	Product of the distinct prime numbers

The prime factorization of 81321566 is 2 × 1381 × 29443. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 5, 98, 98, 259, 163, 6480, 7397, 86830, 59575, 205727, 911973, 9188670, 3574307, 29954809, 76656054, 776878036, 236676067, 4018781543, 50711179

Basic calculations (n = 81321566)

Multiplication

n×y

n×2	162643132
n×3	243964698
n×4	325286264
n×5	406607830

Division

n÷y

n÷2	40660783
n÷3	27107188.666667
n÷3	20330391.5
n÷5	16264313.2

Exponentiation

n^y

n²	6613197096692356
n³	5.3779554416968E+23
n⁴	4.37343758397E+31
n⁵	3.556547931317E+39

Nth Root

^y√n

²√n	9017.847082314
³√n	433.24668102991
⁴√n	94.962345602423
⁵√n	38.19804593457

Divisors of 81321566

1, 2, 1381, 2762, 29443, 58886, 40660783, 81321566

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	-81321565	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 81321566 can be divided by 8 positive divisors. The sum of these divisors (counting 81321566) is 1, the average is 0.125.

Base conversion 81321566

Base	System	Value
2	Binary	100110110001101111001011110
3	Ternary	12200000120012212
4	Quaternary	10312031321132
5	Quinary	131304242231
6	Senary	12023000422
8	Octal	466157136
10	Decimal	81321566
12	Duodecimal	23299112
16	Hexadecimal	4d8de5e
20	Vigesimal	15853i6
36	Base36	1cf04e

Cryptographic Hash Functions

md5	5cf730805f2c5eb58fa9bde6a1c4d681
sha1	175bfea5867ac338248965b7f2fa82b4612b74dd
sha256	a558df11e60e6f24a63d6759d7da88f980d3c131c432409fe1dfa8f9a9371546
sha512	6f8353421dd591702d06ac5e41a68b867987c410a39e18cce51be4173bc314d2a62d953c2bc06acdd47b8710e31b32af6066d4dff349c1cb57fa893417fd3bdf
ripemd-160	0e03cb20e10999d13461eedb3f1faf8c681f0a92

81321566 as geometric shapes

Circle

Radius = n

Diameter	162643132
Circumference	510958468.64803
Area	2.077597141571E+16

Sphere

Radius = n

Volume	2.2527127075957E+24
Surface area	8.310388566284E+16
Circumference	510958468.64803

Square

Length = n

Perimeter	325286264
Area	6613197096692356
Diagonal	115006061.55062

Cube

Length = n

Surface area	39679182580154136
Volume	5.3779554416968E+23
Space diagonal	140853084.06307

Equilateral Triangle

Length = n

Perimeter	243964698
Area	2.8635983429845E+15
Altitude	70426542.031533

Triangular Pyramid

Length = n

Surface area	2.8635983429845E+15
Volume	6.3379812695715E+22
Height	38335353.850206