81392012 (number)

81392012 is an even 8-digits composite number following 81392011 and preceding 81392013. In scientific notation, it is written as 8.1392012 × 10^7. The sum of its digits is 26. It has a total of 5 prime factors and 24 positive divisors. There are 37496448 positive integers (up to 81392012) that are relatively prime to 81392012.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred ninety-two thousand twelve

Notation

Scientific notation 8.1392012 × 10^7
Engineering notation 8.1392012 × 10^6

Prime Factorization of 81392012

Prime Factorization 2 × 2 × 13 × 727 × 2153

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 40696006
Product of the distinct prime numbers

The prime factorization of 81392012 is 2 × 2 × 13 × 727 × 2153. Since it has a total of 5 prime factors.

Most popular turbo-numbers

8, 2, 89, 40, 729, 687, 169, 4812, 95442, 85660, 874853, 805267, 8281434, 2377553, 8059224, 70959067, 832634898, 901013133, 6367007325, 117771359

Basic calculations (n = 81392012)

Multiplication

n×y
n×2 162784024
n×3 244176036
n×4 325568048
n×5 406960060

Division

n÷y
n÷2 40696006
n÷3 27130670.666667
n÷3 20348003
n÷5 16278402.4

Exponentiation

ny
n2 6624659617408144
n3 5.39194375076E+23
n4 4.3886115046518E+31
n5 3.5719792024996E+39

Nth Root

y√n
2√n 9021.7521579791
3√n 433.37174702199
4√n 94.982904556447
5√n 38.204661566187

Divisors of 81392012

1, 2, 4, 13, 26, 52, 727, 1454, 2153, 2908, 4306, 8612, 9451, 18902, 27989, 37804, 55978, 111956, 1565231, 3130462, 6260924, 20348003, 40696006, 81392012

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 -81392011
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 81392012 can be divided by 24 positive divisors. The sum of these divisors (counting 81392012) is 1, the average is 0.041666666666667.

Base conversion 81392012

Base System Value
2 Binary 100110110011111000110001100
3 Ternary 12200011010211222
4 Quaternary 10312133012030
5 Quinary 131314021022
6 Senary 12024302512
8 Octal 466370614
10 Decimal 81392012
12 Duodecimal 23311a38
16 Hexadecimal 4d9f18c
20 Vigesimal 158e00c
36 Base36 1cgih8

Cryptographic Hash Functions

md5 1e793c1604fed616b4f5012092e4f9a3
sha1 8e1845658d8b0fd49a7bbcbb5d68396805202181
sha256 3979569e949f22f33b115b2d313923b363f69e5c1e784e062e3e2147345e25b7
sha512 b12266a85fafb02410d06a18f73ce533a5484197832dc271d04174996826376687e792b6139af12b07c2e3ffcbe4c137aad1d9fc5cfee6a8bc5047c3c5ca5c69
ripemd-160 8b5e044bc5c93889d66930ade7318c3ce6039435

81392012 as geometric shapes

Circle

Radius = n
Diameter 162784024
Circumference 511401093.92018
Area 2.0811981986582E+16

Sphere

Radius = n
Volume 2.2585721167943E+24
Surface area 8.324792794633E+16
Circumference 511401093.92018

Square

Length = n
Perimeter 325568048
Area 6624659617408144
Diagonal 115105687.23923

Cube

Length = n
Surface area 39747957704448864
Volume 5.39194375076E+23
Space diagonal 140975100.11426

Equilateral Triangle

Length = n
Perimeter 244176036
Area 2.8685617600502E+15
Altitude 70487550.057128

Triangular Pyramid

Length = n
Surface area 2.8685617600502E+15
Volume 6.354466649898E+22
Height 38368562.413078