81330757 (number)

81330757 is an odd 8-digits composite number following 81330756 and preceding 81330758. In scientific notation, it is written as 8.1330757 × 10^7. The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors. There are 78572640 positive integers (up to 81330757) that are relatively prime to 81330757.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1330757 × 10^7
Engineering notation 8.1330757 × 10^6

Prime Factorization of 81330757

Prime Factorization 41 × 103 × 19259

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81330757
Product of the distinct prime numbers

The prime factorization of 81330757 is 41 × 103 × 19259. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81330757)

Multiplication

n×y
n×2 162661514
n×3 243992271
n×4 325323028
n×5 406653785

Division

n÷y
n÷2 40665378.5
n÷3 27110252.333333
n÷3 20332689.25
n÷5 16266151.4

Exponentiation

ny
n2 6614692034193049
n3 5.3797791046279E+23
n4 4.3754150707217E+31
n5 3.55855819891E+39

Nth Root

y√n
2√n 9018.3566684846
3√n 433.26300232669
4√n 94.965028660474
5√n 38.198909327608

Divisors of 81330757

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 -81330756
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 81330757 can be divided by 8 positive divisors. The sum of these divisors (counting 81330757) is 1, the average is 0.125.

Base conversion 81330757

Base System Value
2 Binary 100110110010000001001000101
3 Ternary 12200001000211021
4 Quaternary 10312100021011
5 Quinary 131310041012
6 Senary 12023111141
8 Octal 466201105
10 Decimal 81330757
12 Duodecimal 232a24b1
16 Hexadecimal 4d90245
20 Vigesimal 15866hh
36 Base36 1cf77p

Cryptographic Hash Functions

md5 e693e5960d9e75b8fadc4ace26fa4172
sha1 12b63dd493e0f5d509a4b3941104a7e78d0aaa07
sha256 a80aa388265393708855296c3fe44dff6f328e230a363bad6c4db342fcebfa9c
sha512 26ddd4bdde5218bedd08482d00291ab5499052f888da1372da3c6d54140defdab53a2da82c4b18fbb30f44533e79ed60357620fc84f11547d989bee9d629513b
ripemd-160 1d09bb837a3f5650aae375945ed2329c67ce1cd9

81330757 as geometric shapes

Circle

Radius = n
Diameter 162661514
Circumference 511016217.40419
Area 2.078066790038E+16

Sphere

Radius = n
Volume 2.253476601738E+24
Surface area 8.3122671601519E+16
Circumference 511016217.40419

Square

Length = n
Perimeter 325323028
Area 6614692034193049
Diagonal 115019059.58747

Cube

Length = n
Surface area 39688152205158294
Volume 5.3797791046279E+23
Space diagonal 140869003.34204

Equilateral Triangle

Length = n
Perimeter 243992271
Area 2.8642456699109E+15
Altitude 70434501.671019

Triangular Pyramid

Length = n
Surface area 2.8642456699109E+15
Volume 6.3401304769468E+22
Height 38339686.529157