81301908 (number)

81301908 is an even 8-digits composite number following 81301907 and preceding 81301909. In scientific notation, it is written as 8.1301908 × 10^7. The sum of its digits is 30. It has a total of 5 prime factors and 24 positive divisors. There are 26820864 positive integers (up to 81301908) that are relatively prime to 81301908.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred one thousand nine hundred eight

Notation

Scientific notation 8.1301908 × 10^7
Engineering notation 8.1301908 × 10^6

Prime Factorization of 81301908

Prime Factorization 2 × 2 × 3 × 97 × 69847

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 40650954
Product of the distinct prime numbers

The prime factorization of 81301908 is 2 × 2 × 3 × 97 × 69847. Since it has a total of 5 prime factors.

Most popular turbo-numbers

7, 3, 31, 72, 426, 645, 8468, 8730, 56674, 21861, 241500, 119796, 1107823, 5819115, 91876324, 40601896, 215897842, 549889670, 5203856707, 6925893764

Basic calculations (n = 81301908)

Multiplication

n×y
n×2 162603816
n×3 243905724
n×4 325207632
n×5 406509540

Division

n÷y
n÷2 40650954
n÷3 27100636
n÷3 20325477
n÷5 16260381.6

Exponentiation

ny
n2 6610000244440464
n3 5.3740563175348E+23
n4 4.3692103231503E+31
n5 3.5522513572542E+39

Nth Root

y√n
2√n 9016.7570667064
3√n 433.21176839839
4√n 94.956606229932
5√n 38.1961990203

Divisors of 81301908

1, 2, 3, 4, 6, 12, 97, 194, 291, 388, 582, 1164, 69847, 139694, 209541, 279388, 419082, 838164, 6775159, 13550318, 20325477, 27100636, 40650954, 81301908

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 -81301907
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 81301908 can be divided by 24 positive divisors. The sum of these divisors (counting 81301908) is 1, the average is 0.041666666666667.

Base conversion 81301908

Base System Value
2 Binary 100110110001001000110010100
3 Ternary 12122222120020210
4 Quaternary 10312021012110
5 Quinary 131303130113
6 Senary 12022325420
8 Octal 466110624
10 Decimal 81301908
12 Duodecimal 23289870
16 Hexadecimal 4d89194
20 Vigesimal 1582ef8
36 Base36 1cekyc

Cryptographic Hash Functions

md5 15d2b7ce792f1e3ac0559776550b7f97
sha1 e9312fa7439404fbef203a0ab61868dae669250d
sha256 2f71881996b126d35e1e448371e5e264442fc737ac39b4e26f73be0a2fde8e5a
sha512 107c3d0608f5985c31142fa2f683a991cff91a4defb473fe381029ec1550f6e1cd46e9996108b47a557d4f05c8c29c821d67691511a75ad0353e0b00fe249d19
ripemd-160 bd1d975c91c51298676f9b34e9bde0a4c786ceda

81301908 as geometric shapes

Circle

Radius = n
Diameter 162603816
Circumference 510834953.79127
Area 2.0765928208161E+16

Sphere

Radius = n
Volume 2.251079446286E+24
Surface area 8.3063712832644E+16
Circumference 510834953.79127

Square

Length = n
Perimeter 325207632
Area 6610000244440464
Diagonal 114978260.94041

Cube

Length = n
Surface area 39660001466642784
Volume 5.3740563175348E+23
Space diagonal 140819035.40829

Equilateral Triangle

Length = n
Perimeter 243905724
Area 2.8622140653534E+15
Altitude 70409517.704145

Triangular Pyramid

Length = n
Surface area 2.8622140653534E+15
Volume 6.3333861076787E+22
Height 38326086.980137