81272271 (number)

81272271 is an odd 8-digits composite number following 81272270 and preceding 81272272. In scientific notation, it is written as 8.1272271 × 10^7. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 51825752 positive integers (up to 81272271) that are relatively prime to 81272271.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1272271 × 10^7
Engineering notation 8.1272271 × 10^6

Prime Factorization of 81272271

Prime Factorization 3 × 23 × 1177859

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81272271
Product of the distinct prime numbers

The prime factorization of 81272271 is 3 × 23 × 1177859. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81272271)

Multiplication

n×y
n×2 162544542
n×3 243816813
n×4 325089084
n×5 406361355

Division

n÷y
n÷2 40636135.5
n÷3 27090757
n÷3 20318067.75
n÷5 16254454.2

Exponentiation

ny
n2 6605182033497441
n3 5.3681814423074E+23
n4 4.3628429695637E+31
n5 3.5457815615283E+39

Nth Root

y√n
2√n 9015.1134768232
3√n 433.15912241139
4√n 94.947951409302
5√n 38.193413880623

Divisors of 81272271

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 -81272270
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 81272271 can be divided by 8 positive divisors. The sum of these divisors (counting 81272271) is 1, the average is 0.125.

Base conversion 81272271

Base System Value
2 Binary 100110110000001110111001111
3 Ternary 12122221001121010
4 Quaternary 10312001313033
5 Quinary 131301203041
6 Senary 12021540303
8 Octal 466016717
10 Decimal 81272271
12 Duodecimal 23274693
16 Hexadecimal 4d81dcf
20 Vigesimal 157j0db
36 Base36 1cdy33

Cryptographic Hash Functions

md5 72a8a82572c5836b6f13991bb37f30f3
sha1 2e32abfb057d93d3cccbdcade26bca7de8396cc6
sha256 750cf258af114553a21a67d4be6167c63630ffda324ec31097c6a6054980a70a
sha512 4996e605dfc285e9de232619018e61469f4097f378bf0226fcb3cd890a33021063adde0ec8d7e4ba8229e8bc042837f151b232e80ca0efae0334cece924c54c1
ripemd-160 759040323a216431e4ec83a8fef7641f5212c9cd

81272271 as geometric shapes

Circle

Radius = n
Diameter 162544542
Circumference 510648739.02832
Area 2.0750791352059E+16

Sphere

Radius = n
Volume 2.2486185843053E+24
Surface area 8.3003165408235E+16
Circumference 510648739.02832

Square

Length = n
Perimeter 325089084
Area 6605182033497441
Diagonal 114936347.89306

Cube

Length = n
Surface area 39631092200984646
Volume 5.3681814423074E+23
Space diagonal 140767702.61851

Equilateral Triangle

Length = n
Perimeter 243816813
Area 2.8601277188147E+15
Altitude 70383851.309253

Triangular Pyramid

Length = n
Surface area 2.8601277188147E+15
Volume 6.3264625008255E+22
Height 38312115.964354