81272212 (number)

81272212 is an even 8-digits composite number following 81272211 and preceding 81272213. In scientific notation, it is written as 8.1272212 × 10^7. The sum of its digits is 25. It has a total of 5 prime factors and 24 positive divisors. There are 34089312 positive integers (up to 81272212) that are relatively prime to 81272212.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred seventy-two thousand two hundred twelve

Notation

Scientific notation 8.1272212 × 10^7
Engineering notation 8.1272212 × 10^6

Prime Factorization of 81272212

Prime Factorization 2 × 2 × 7 × 47 × 61757

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 40636106
Product of the distinct prime numbers

The prime factorization of 81272212 is 2 × 2 × 7 × 47 × 61757. Since it has a total of 5 prime factors.

Most popular turbo-numbers

8, 6, 99, 13, 921, 831, 1714, 5403, 77430, 17372, 880309, 782831, 4468513, 1746479, 64961943, 96795846, 344683070, 818335196, 5401187200, 5900432450

Basic calculations (n = 81272212)

Multiplication

n×y
n×2 162544424
n×3 243816636
n×4 325088848
n×5 406361060

Division

n÷y
n÷2 40636106
n÷3 27090737.333333
n÷3 20318053
n÷5 16254442.4

Exponentiation

ny
n2 6605172443372944
n3 5.3681697511436E+23
n4 4.3628303006693E+31
n5 3.5457686911602E+39

Nth Root

y√n
2√n 9015.1102045399
3√n 433.15901759337
4√n 94.947934177316
5√n 38.193408335282

Divisors of 81272212

1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 61757, 123514, 247028, 432299, 864598, 1729196, 2902579, 5805158, 11610316, 20318053, 40636106, 81272212

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81272211
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81272212 can be divided by 24 positive divisors. The sum of these divisors (counting 81272212) is 1, the average is 0.041666666666667.

Base conversion 81272212

Base System Value
2 Binary 100110110000001110110010100
3 Ternary 12122221001111221
4 Quaternary 10312001312110
5 Quinary 131301202322
6 Senary 12021540124
8 Octal 466016624
10 Decimal 81272212
12 Duodecimal 23274644
16 Hexadecimal 4d81d94
20 Vigesimal 157j0ac
36 Base36 1cdy1g

Cryptographic Hash Functions

md5 8ccaf2aae3b1d87d040006b19f7416b6
sha1 b72d2259574b50a20fe7f67aff8ca3657a85df0c
sha256 8376a591ef877c843a491f9415445f39a9159a9158451f82603f3614daaa778a
sha512 2cabf2cf5d2adb12dac36b46229ee6f4e5b1f54d94135f84ff4464afa47411486f803b1ac8e3c1538ed0af7ec7cca3b68849303749259524868bc9fce350be77
ripemd-160 0cf6fd975637f3ffc8ca2ac26f4cf94068b56799

81272212 as geometric shapes

Circle

Radius = n
Diameter 162544424
Circumference 510648368.32038
Area 2.0750761223794E+16

Sphere

Radius = n
Volume 2.2486136871221E+24
Surface area 8.3003044895177E+16
Circumference 510648368.32038

Square

Length = n
Perimeter 325088848
Area 6605172443372944
Diagonal 114936264.45446

Cube

Length = n
Surface area 39631034660237664
Volume 5.3681697511436E+23
Space diagonal 140767600.42751

Equilateral Triangle

Length = n
Perimeter 243816636
Area 2.860123566169E+15
Altitude 70383800.213754

Triangular Pyramid

Length = n
Surface area 2.860123566169E+15
Volume 6.3264487226569E+22
Height 38312088.151487