81259968 (number)

81259968 is an even 8-digits composite number following 81259967 and preceding 81259969. In scientific notation, it is written as 8.1259968 × 10^7. The sum of its digits is 48. It has a total of 8 prime factors and 28 positive divisors. There are 27086592 positive integers (up to 81259968) that are relatively prime to 81259968.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred fifty-nine thousand nine hundred sixty-eight

Notation

Scientific notation 8.1259968 × 10^7
Engineering notation 8.1259968 × 10^6

Prime Factorization of 81259968

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 3 × 423229

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 2539374
Product of the distinct prime numbers

The prime factorization of 81259968 is 2 × 2 × 2 × 2 × 2 × 2 × 3 × 423229. Since it has a total of 8 prime factors.

Most popular turbo-numbers

3, 8, 58, 93, 371, 988, 535, 595, 6403, 52643, 150027, 628776, 6378351, 5302940, 90919970, 58295657, 830431517, 505273299, 206797130, 7373769276

Basic calculations (n = 81259968)

Multiplication

n×y
n×2 162519936
n×3 243779904
n×4 325039872
n×5 406299840

Division

n÷y
n÷2 40629984
n÷3 27086656
n÷3 20314992
n÷5 16251993.6

Exponentiation

ny
n2 6603182399361024
n3 5.3657439047024E+23
n4 4.3602017799231E+31
n5 3.543098571101E+39

Nth Root

y√n
2√n 9014.431096858
3√n 433.13726409264
4√n 94.944357899024
5√n 38.192257466459

Divisors of 81259968

1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 192, 423229, 846458, 1269687, 1692916, 2539374, 3385832, 5078748, 6771664, 10157496, 13543328, 20314992, 27086656, 40629984, 81259968

28 divisors

τ Total Divisors 28
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81259967
Sum of the proper positive divisors of n
A Arithmetic Mean 0.035714285714286
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 28
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81259968 can be divided by 28 positive divisors. The sum of these divisors (counting 81259968) is 1, the average is 0.035714285714286.

Base conversion 81259968

Base System Value
2 Binary 100110101111110110111000000
3 Ternary 12122220102201110
4 Quaternary 10311332313000
5 Quinary 131300304333
6 Senary 12021403320
8 Octal 465766700
10 Decimal 81259968
12 Duodecimal 23269540
16 Hexadecimal 4d7edc0
20 Vigesimal 157h9i8
36 Base36 1cdolc

Cryptographic Hash Functions

md5 112f79dda539ea55255888e213298ce5
sha1 950ff012298b1751a8a3f35525c6663a118ddd20
sha256 69238e81a025f1db2bffd22d840552e6945610e22acf51ee5d85c6afe698893d
sha512 f9f27e421524c6e47f756af5ccc98d89a8e425e46937a65f1041381010c94d27bce3d85bdee986843015efcb0fc035260df66f71e3c8c5545bf27ea6898576a8
ripemd-160 f7751708274e654ba47e0a81009110baf21cf2d2

81259968 as geometric shapes

Circle

Radius = n
Diameter 162519936
Circumference 510571436.99948
Area 2.0744509316146E+16

Sphere

Radius = n
Volume 2.247597550941E+24
Surface area 8.2978037264584E+16
Circumference 510571436.99948

Square

Length = n
Perimeter 325039872
Area 6603182399361024
Diagonal 114918948.8236

Cube

Length = n
Surface area 39619094396166144
Volume 5.3657439047024E+23
Space diagonal 140746393.19742

Equilateral Triangle

Length = n
Perimeter 243779904
Area 2.8592618518345E+15
Altitude 70373196.598711

Triangular Pyramid

Length = n
Surface area 2.8592618518345E+15
Volume 6.3235898352091E+22
Height 38306316.274535