81350557 (number)

81350557 is an odd 8-digits composite number following 81350556 and preceding 81350558. In scientific notation, it is written as 8.1350557 × 10^7. The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors. There are 79971676 positive integers (up to 81350557) that are relatively prime to 81350557.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1350557 × 10^7
Engineering notation 8.1350557 × 10^6

Prime Factorization of 81350557

Prime Factorization 59 × 1378823

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 81350557
Product of the distinct prime numbers

The prime factorization of 81350557 is 59 × 1378823. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81350557)

Multiplication

n×y
n×2 162701114
n×3 244051671
n×4 325402228
n×5 406752785

Division

n÷y
n÷2 40675278.5
n÷3 27116852.333333
n÷3 20337639.25
n÷5 16270111.4

Exponentiation

ny
n2 6617913124210249
n3 5.3837091883211E+23
n4 4.3796774119594E+31
n5 3.5628919694322E+39

Nth Root

y√n
2√n 9019.4543626541
3√n 433.29815881485
4√n 94.970807949886
5√n 38.200769053968

Divisors of 81350557

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 -81350556
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 81350557 can be divided by 4 positive divisors. The sum of these divisors (counting 81350557) is 1, the average is 0.25.

Base conversion 81350557

Base System Value
2 Binary 100110110010100111110011101
3 Ternary 12200002000222121
4 Quaternary 10312110332131
5 Quinary 131311204212
6 Senary 12023342541
8 Octal 466247635
10 Decimal 81350557
12 Duodecimal 232b1a51
16 Hexadecimal 4d94f9d
20 Vigesimal 1588g7h
36 Base36 1cfmhp

Cryptographic Hash Functions

md5 efd705208b86de0861742ef9222e0f30
sha1 1dd56a6ca42f9d3161ce922d25478fb41dfbc4bf
sha256 a6ed711c3f2dba5b97b977b2281a970667da9fa3291d0f22be1a54d9f396626f
sha512 9266d29f1a8e32804626665222623b91b3a20b9e020accd1efdc9bb2e231d92812809b7645493b39585c23a09365486eebca20f6ae10231df84f1e2072e08109
ripemd-160 053732b3a0d68c5ee0fb6bf9e694a666148ae084

81350557 as geometric shapes

Circle

Radius = n
Diameter 162701114
Circumference 511140624.47328
Area 2.0790787253114E+16

Sphere

Radius = n
Volume 2.2551228313458E+24
Surface area 8.3163149012458E+16
Circumference 511140624.47328

Square

Length = n
Perimeter 325402228
Area 6617913124210249
Diagonal 115047061.01601

Cube

Length = n
Surface area 39707478745261494
Volume 5.3837091883211E+23
Space diagonal 140903297.94803

Equilateral Triangle

Length = n
Perimeter 244051671
Area 2.8656404428023E+15
Altitude 70451648.974014

Triangular Pyramid

Length = n
Surface area 2.8656404428023E+15
Volume 6.344762124997E+22
Height 38349020.338669