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

81330751 (number)

81330751 is an odd 8-digits composite number following 81330750 and preceding 81330752. In scientific notation, it is written as 8.1330751 × 10^7. The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors. There are 79997400 positive integers (up to 81330751) that are relatively prime to 81330751.

Interesting facts

81330751 has 4 divisors, whose sum is 82664104
The reverse of 81330751 is 15703318
Previous prime number is 61

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1

Name

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

Notation

Scientific notation	8.1330751 × 10^7
Engineering notation	8.1330751 × 10^6

Prime Factorization of 81330751

Prime Factorization 61 × 1333291

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81330751	Product of the distinct prime numbers

The prime factorization of 81330751 is 61 × 1333291. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 6, 13, 90, 107, 989, 4783, 2487, 30577, 91208, 970690, 823522, 6056353, 7883474, 16151112, 71937185, 642484568, 281638037, 7815644209, 4400594185

Basic calculations (n = 81330751)

Multiplication

n×y

n×2	162661502
n×3	243992253
n×4	325323004
n×5	406653755

Division

n÷y

n÷2	40665375.5
n÷3	27110250.333333
n÷3	20332687.75
n÷5	16266150.2

Exponentiation

n^y

n²	6614691058224001
n³	5.3797779139834E+23
n⁴	4.3754137795749E+31
n⁵	3.5585568862857E+39

Nth Root

^y√n

²√n	9018.3563358297
³√n	433.26299167235
⁴√n	94.965026909014
⁵√n	38.198908764

Divisors of 81330751

1, 61, 1333291, 81330751

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	-81330750	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 81330751 can be divided by 4 positive divisors. The sum of these divisors (counting 81330751) is 1, the average is 0.25.

Base conversion 81330751

Base	System	Value
2	Binary	100110110010000001000111111
3	Ternary	12200001000211001
4	Quaternary	10312100020333
5	Quinary	131310041001
6	Senary	12023111131
8	Octal	466201077
10	Decimal	81330751
12	Duodecimal	232a24a7
16	Hexadecimal	4d9023f
20	Vigesimal	15866hb
36	Base36	1cf77j

Cryptographic Hash Functions

md5	32d6ec3a952da0bde094e99904690353
sha1	d8cbe4a1ea4add95b776af2167aa1235dc854d90
sha256	c0073311b0d73a1813a4337ad139ad349070f12a2cfd42f1e9edf59c0c0dfd13
sha512	04102f34f1b4050bfb5e9a065fbe50f15f3f92687f5d1f75d1ff8d86493391a3b79a5a27731add1953fb89eb141ca84538073bff21a5fb77f48100c8cff3cfb0
ripemd-160	e5c77df1960219fa6a16e5ec1669f1aa86f5bbb1

81330751 as geometric shapes

Circle

Radius = n

Diameter	162661502
Circumference	511016179.70508
Area	2.0780664834283E+16

Sphere

Radius = n

Volume	2.253476103002E+24
Surface area	8.312265933713E+16
Circumference	511016179.70508

Square

Length = n

Perimeter	325323004
Area	6614691058224001
Diagonal	115019051.10219

Cube

Length = n

Surface area	39688146349344006
Volume	5.3797779139834E+23
Space diagonal	140868992.94973

Equilateral Triangle

Length = n

Perimeter	243992253
Area	2.8642452473039E+15
Altitude	70434496.474867

Triangular Pyramid

Length = n

Surface area	2.8642452473039E+15
Volume	6.3401290737588E+22
Height	38339683.70073