81122908 (number)

81122908 is an even 8-digits composite number following 81122907 and preceding 81122909. In scientific notation, it is written as 8.1122908 × 10^7. The sum of its digits is 31. It has a total of 5 prime factors and 24 positive divisors. There are 39106800 positive integers (up to 81122908) that are relatively prime to 81122908.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred twenty-two thousand nine hundred eight

Notation

Scientific notation 8.1122908 × 10^7
Engineering notation 8.1122908 × 10^6

Prime Factorization of 81122908

Prime Factorization 2 × 2 × 31 × 2131 × 307

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 40561454
Product of the distinct prime numbers

The prime factorization of 81122908 is 2 × 2 × 31 × 2131 × 307. Since it has a total of 5 prime factors.

Most popular turbo-numbers

1, 9, 43, 49, 545, 316, 7942, 7669, 81973, 81848, 682920, 659716, 3865456, 333086, 9823315, 47969049, 398016793, 640570953, 2520623655, 1234191634

Basic calculations (n = 81122908)

Multiplication

n×y
n×2 162245816
n×3 243368724
n×4 324491632
n×5 405614540

Division

n÷y
n÷2 40561454
n÷3 27040969.333333
n÷3 20280727
n÷5 16224581.6

Exponentiation

ny
n2 6580926202376464
n3 5.3386387087018E+23
n4 4.3308589681125E+31
n5 3.5133187363117E+39

Nth Root

y√n
2√n 9006.825633929
3√n 432.89360495219
4√n 94.904297236368
5√n 38.179365100917

Divisors of 81122908

1, 2, 4, 31, 62, 124, 307, 614, 1228, 2131, 4262, 8524, 9517, 19034, 38068, 66061, 132122, 264244, 654217, 1308434, 2616868, 20280727, 40561454, 81122908

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 -81122907
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 81122908 can be divided by 24 positive divisors. The sum of these divisors (counting 81122908) is 1, the average is 0.041666666666667.

Base conversion 81122908

Base System Value
2 Binary 100110101011101011001011100
3 Ternary 12122122110201011
4 Quaternary 10311131121130
5 Quinary 131231413113
6 Senary 12014425004
8 Octal 465353134
10 Decimal 81122908
12 Duodecimal 23202164
16 Hexadecimal 4d5d65c
20 Vigesimal 1570758
36 Base36 1caqu4

Cryptographic Hash Functions

md5 067a040e296a68f3f5212f9b6aac3156
sha1 77a6c2ca933b6b792fb9da902a9575f368bc3451
sha256 f028b4cd1f2fdfbb28d2fb5ba4841762ab1c5689d748566011decb62fa568ece
sha512 17d9a142deb8d0604ab32a1f512a8d117ef4eed2338bcf81ae1fe972aeb540e8978064876a315d3f1f0ef653d718c935448fc9b1c62f60540a5ae3db21fdda2e
ripemd-160 83cb6fa486a3e818d47c0cf75f4f4ca18b9a1eb9

81122908 as geometric shapes

Circle

Radius = n
Diameter 162245816
Circumference 509710263.62128
Area 2.0674589411202E+16

Sphere

Radius = n
Volume 2.2362437529903E+24
Surface area 8.269835764481E+16
Circumference 509710263.62128

Square

Length = n
Perimeter 324491632
Area 6580926202376464
Diagonal 114725116.71274

Cube

Length = n
Surface area 39485557214258784
Volume 5.3386387087018E+23
Space diagonal 140508998.31374

Equilateral Triangle

Length = n
Perimeter 243368724
Area 2.8496246358443E+15
Altitude 70254499.156868

Triangular Pyramid

Length = n
Surface area 2.8496246358443E+15
Volume 6.29164605538E+22
Height 38241705.570915