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

81306768 (number)

81306768 is an even 8-digits composite number following 81306767 and preceding 81306769. In scientific notation, it is written as 8.1306768 × 10^7. The sum of its digits is 39. It has a total of 6 prime factors and 20 positive divisors. There are 27102240 positive integers (up to 81306768) that are relatively prime to 81306768.

Interesting facts

81306768 has 20 divisors, whose sum is 210042608
The reverse of 81306768 is 86760318
Previous prime number is 3

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 39
Digital Root 3

Name

Name	eighty-one million three hundred six thousand seven hundred sixty-eight

Notation

Scientific notation	8.1306768 × 10^7
Engineering notation	8.1306768 × 10^6

Prime Factorization of 81306768

Prime Factorization 2 × 2 × 2 × 2 × 3 × 1693891

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	6	Total number of prime factors
rad	Radical	10163346	Product of the distinct prime numbers

The prime factorization of 81306768 is 2 × 2 × 2 × 2 × 3 × 1693891. Since it has a total of 6 prime factors.

Most popular turbo-numbers

9, 4, 6, 38, 812, 413, 4929, 6700, 51455, 35180, 818035, 432283, 6402644, 4283102, 88972915, 66030295, 651936514, 338155271, 794079684, 5709657116

Basic calculations (n = 81306768)

Multiplication

n×y

n×2	162613536
n×3	243920304
n×4	325227072
n×5	406533840

Division

n÷y

n÷2	40653384
n÷3	27102256
n÷3	20326692
n÷5	16261353.6

Exponentiation

n^y

n²	6610790522605824
n³	5.3750201131811E+23
n⁴	4.3702551333775E+31
n⁵	3.5533132023033E+39

Nth Root

^y√n

²√n	9017.0265609013
³√n	433.22040028783
⁴√n	94.958025258012
⁵√n	38.196655661708

Divisors of 81306768

1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 1693891, 3387782, 5081673, 6775564, 10163346, 13551128, 20326692, 27102256, 40653384, 81306768

20 divisors

τ	Total Divisors	20	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81306767	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.05	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	20	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81306768 can be divided by 20 positive divisors. The sum of these divisors (counting 81306768) is 1, the average is 0.05.

Base conversion 81306768

Base	System	Value
2	Binary	100110110001010010010010000
3	Ternary	12122222210220210
4	Quaternary	10312022102100
5	Quinary	131303304033
6	Senary	12022404120
8	Octal	466122220
10	Decimal	81306768
12	Duodecimal	23290640
16	Hexadecimal	4d8a490
20	Vigesimal	15836i8
36	Base36	1ceopc

Cryptographic Hash Functions

md5	4df7bf5d3e9e9e7e948858c4aa74918b
sha1	9f8d07cce528c073e90fd3f330e2ab5f76959e9b
sha256	bef57f7691059892807eb1c42b6a8a07735e6c8794afe124b14a5a7f219c8ef4
sha512	9dce2f358230427850d2a710f376e760d3c2d08a98fa36c570fe4f82422832e7c41647e6eb33b3a5560d73c10491a48464c315aba20e76717a510f54c28f431c
ripemd-160	21a929d0c411897dff0a255367c23653ce18b440

81306768 as geometric shapes

Circle

Radius = n

Diameter	162613536
Circumference	510865490.07186
Area	2.0768410940239E+16

Sphere

Radius = n

Volume	2.2514831600623E+24
Surface area	8.3073643760958E+16
Circumference	510865490.07186

Square

Length = n

Perimeter	325227072
Area	6610790522605824
Diagonal	114985134.01832

Cube

Length = n

Surface area	39664743135634944
Volume	5.3750201131811E+23
Space diagonal	140827453.17522

Equilateral Triangle

Length = n

Perimeter	243920304
Area	2.862556265837E+15
Altitude	70413726.587608

Triangular Pyramid

Length = n

Surface area	2.862556265837E+15
Volume	6.3345219517407E+22
Height	38328378.006108