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

81330387 (number)

81330387 is an odd 8-digits composite number following 81330386 and preceding 81330388. In scientific notation, it is written as 8.1330387 × 10^7. The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors. There are 54220256 positive integers (up to 81330387) that are relatively prime to 81330387.

Interesting facts

81330387 has 4 divisors, whose sum is 108440520
The reverse of 81330387 is 78303318
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6

Name

Name	eighty-one million three hundred thirty thousand three hundred eighty-seven

Notation

Scientific notation	8.1330387 × 10^7
Engineering notation	8.1330387 × 10^6

Prime Factorization of 81330387

Prime Factorization 3 × 27110129

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81330387	Product of the distinct prime numbers

The prime factorization of 81330387 is 3 × 27110129. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 3, 98, 17, 807, 638, 390, 8564, 65157, 58951, 810265, 357143, 6319698, 7248924, 58059759, 83452683, 933159157, 809170294, 5138065481, 6617020981

Basic calculations (n = 81330387)

Multiplication

n×y

n×2	162660774
n×3	243991161
n×4	325321548
n×5	406651935

Division

n÷y

n÷2	40665193.5
n÷3	27110129
n÷3	20332596.75
n÷5	16266077.4

Exponentiation

n^y

n²	6614631849569769
n³	5.3797056818804E+23
n⁴	4.3753354505343E+31
n⁵	3.5584772544677E+39

Nth Root

^y√n

²√n	9018.3361547461
³√n	433.26234530771
⁴√n	94.964920653608
⁵√n	38.198874571699

Divisors of 81330387

1, 3, 27110129, 81330387

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81330386	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	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	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81330387 can be divided by 4 positive divisors. The sum of these divisors (counting 81330387) is 1, the average is 0.25.

Base conversion 81330387

Base	System	Value
2	Binary	100110110010000000011010011
3	Ternary	12200001000022120
4	Quaternary	10312100003103
5	Quinary	131310033022
6	Senary	12023105323
8	Octal	466200323
10	Decimal	81330387
12	Duodecimal	232a2243
16	Hexadecimal	4d900d3
20	Vigesimal	15865j7
36	Base36	1cf6xf

Cryptographic Hash Functions

md5	519625ad02ced36986612d7f6627475a
sha1	17ee822b7cbfb0e88094cc5b1fee4b847f36e6a9
sha256	76fdc7d6b678fa0a067ed4e599b449d069b7fd0ebd933e74da4540065ca6e6c6
sha512	dbc5d5bec8d6ca747369dc4b7e706a69f602cebd3dcbbd7c7c016a31bf3d2ea9e730372076f1e20b098ce6aa61c468741625c1cd36e0d54c5a443a8585a5eabf
ripemd-160	fe3ac68aa99d1c0098aa8b657d784295cef23178

81330387 as geometric shapes

Circle

Radius = n

Diameter	162660774
Circumference	511013892.62563
Area	2.0780478824809E+16

Sphere

Radius = n

Volume	2.2534458464894E+24
Surface area	8.3121915299238E+16
Circumference	511013892.62563

Square

Length = n

Perimeter	325321548
Area	6614631849569769
Diagonal	115018536.32845

Cube

Length = n

Surface area	39687791097418614
Volume	5.3797056818804E+23
Space diagonal	140868362.48324

Equilateral Triangle

Length = n

Perimeter	243991161
Area	2.8642196092045E+15
Altitude	70434181.24162

Triangular Pyramid

Length = n

Surface area	2.8642196092045E+15
Volume	6.340043947409E+22
Height	38339512.109484