81872271 (number)

81872271 is an odd 8-digits composite number following 81872270 and preceding 81872272. In scientific notation, it is written as 8.1872271 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 24 positive divisors. There are 48755520 positive integers (up to 81872271) that are relatively prime to 81872271.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1872271 × 10^7
Engineering notation 8.1872271 × 10^6

Prime Factorization of 81872271

Prime Factorization 3 × 3 × 13 × 31 × 22573

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 27290757
Product of the distinct prime numbers

The prime factorization of 81872271 is 3 × 3 × 13 × 31 × 22573. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 6, 54, 65, 371, 499, 3123, 966, 25067, 15216, 464814, 201860, 281838, 5905212, 90173554, 7633848, 328353767, 916508142, 8294276539, 4262852349

Basic calculations (n = 81872271)

Multiplication

n×y
n×2 163744542
n×3 245616813
n×4 327489084
n×5 409361355

Division

n÷y
n÷2 40936135.5
n÷3 27290757
n÷3 20468067.75
n÷5 16374454.2

Exponentiation

ny
n2 6703068758697441
n3 5.4879546194371E+23
n4 4.4931130783826E+31
n5 3.6786137158698E+39

Nth Root

y√n
2√n 9048.3297353711
3√n 434.22245562934
4√n 95.122708831125
5√n 38.249641359765

Divisors of 81872271

1, 3, 9, 13, 31, 39, 93, 117, 279, 403, 1209, 3627, 22573, 67719, 203157, 293449, 699763, 880347, 2099289, 2641041, 6297867, 9096919, 27290757, 81872271

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 -81872270
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 81872271 can be divided by 24 positive divisors. The sum of these divisors (counting 81872271) is 1, the average is 0.041666666666667.

Base conversion 81872271

Base System Value
2 Binary 100111000010100010110001111
3 Ternary 12201001112122100
4 Quaternary 10320110112033
5 Quinary 131424403041
6 Senary 12042450143
8 Octal 470242617
10 Decimal 81872271
12 Duodecimal 23503953
16 Hexadecimal 4e1458f
20 Vigesimal 15be0db
36 Base36 1cqt1r

Cryptographic Hash Functions

md5 d0f23aa12f10e64031699e92b530b6f6
sha1 d2dc21f125f2c33d754d5b3c8fe3fd5fff2a51ae
sha256 55846602a7b7b5735f1834beb270de4343f87d79347e3acdda01a7fc2b4e75cd
sha512 e5b1a0e1e4551da30780de86a08d23dcf2f31324cf9fb53459f11fd8864bf52e595e3ae5d64abbf0c8c173b38e0ac878546f34637747bd93acddb36bf97de06d
ripemd-160 9577ad602fcf931da41fa07561e07952131410b3

81872271 as geometric shapes

Circle

Radius = n
Diameter 163744542
Circumference 514418650.21263
Area 2.1058311568831E+16

Sphere

Radius = n
Volume 2.298789055421E+24
Surface area 8.4233246275325E+16
Circumference 514418650.21263

Square

Length = n
Perimeter 327489084
Area 6703068758697441
Diagonal 115784876.03049

Cube

Length = n
Surface area 40218412552184646
Volume 5.4879546194371E+23
Space diagonal 141806933.10305

Equilateral Triangle

Length = n
Perimeter 245616813
Area 2.9025139141729E+15
Altitude 70903466.551524

Triangular Pyramid

Length = n
Surface area 2.9025139141729E+15
Volume 6.4676165437467E+22
Height 38594958.676828