81275013 (number)

81275013 is an odd 8-digits composite number following 81275012 and preceding 81275014. In scientific notation, it is written as 8.1275013 × 10^7. The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors. There are 54183336 positive integers (up to 81275013) that are relatively prime to 81275013.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred seventy-five thousand thirteen

Notation

Scientific notation 8.1275013 × 10^7
Engineering notation 8.1275013 × 10^6

Prime Factorization of 81275013

Prime Factorization 9 × 9030557

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 81275013
Product of the distinct prime numbers

The prime factorization of 81275013 is 9 × 9030557. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81275013)

Multiplication

n×y
n×2 162550026
n×3 243825039
n×4 325100052
n×5 406375065

Division

n÷y
n÷2 40637506.5
n÷3 27091671
n÷3 20318753.25
n÷5 16255002.6

Exponentiation

ny
n2 6605627738150169
n3 5.3687248029132E+23
n4 4.3634317815019E+31
n5 3.5463797476618E+39

Nth Root

y√n
2√n 9015.2655534931
3√n 433.16399372827
4√n 94.948752248216
5√n 38.193671594419

Divisors of 81275013

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 -81275012
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 81275013 can be divided by 4 positive divisors. The sum of these divisors (counting 81275013) is 1, the average is 0.25.

Base conversion 81275013

Base System Value
2 Binary 100110110000010100010000101
3 Ternary 12122221012100200
4 Quaternary 10312002202011
5 Quinary 131301300023
6 Senary 12022001113
8 Octal 466024205
10 Decimal 81275013
12 Duodecimal 23276199
16 Hexadecimal 4d82885
20 Vigesimal 157j7ad
36 Base36 1ce079

Cryptographic Hash Functions

md5 7be68c8f3cf34bb650ebec95da7e3fa5
sha1 d92e2c40aba07b5ee878feb79e5fa48ba504db89
sha256 8760e72fd94ff54f0d111dbed188078c9dd6d178cb75b13b51535114ab4a72b2
sha512 32dea0a2c2d601bd3958875cbbba90ce99d65df75fbb213295367d10e9c8dd4524bb6753f76a7fa438bd0f46f4fb44a633add79f56f0681d9ff3bc3876428e78
ripemd-160 988289a0daeb03f9f57a22ca496be574c954c0ea

81275013 as geometric shapes

Circle

Radius = n
Diameter 162550026
Circumference 510665967.52243
Area 2.0752191574522E+16

Sphere

Radius = n
Volume 2.2488461866636E+24
Surface area 8.3008766298086E+16
Circumference 510665967.52243

Square

Length = n
Perimeter 325100052
Area 6605627738150169
Diagonal 114940225.66665

Cube

Length = n
Surface area 39633766428901014
Volume 5.3687248029132E+23
Space diagonal 140772451.90182

Equilateral Triangle

Length = n
Perimeter 243825039
Area 2.8603207145906E+15
Altitude 70386225.95091

Triangular Pyramid

Length = n
Surface area 2.8603207145906E+15
Volume 6.3271028574405E+22
Height 38313408.55555