81105057 (number)

81105057 is an odd 8-digits composite number following 81105056 and preceding 81105058. In scientific notation, it is written as 8.1105057 × 10^7. The sum of its digits is 27. It has a total of 5 prime factors and 24 positive divisors. There are 48816000 positive integers (up to 81105057) that are relatively prime to 81105057.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred five thousand fifty-seven

Notation

Scientific notation 8.1105057 × 10^7
Engineering notation 8.1105057 × 10^6

Prime Factorization of 81105057

Prime Factorization 11 × 9 × 9 × 401 × 227

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 9011673
Product of the distinct prime numbers

The prime factorization of 81105057 is 11 × 9 × 9 × 401 × 227. Since it has a total of 5 prime factors.

Most popular turbo-numbers

7, 6, 17, 92, 470, 32, 462, 2295, 59412, 56024, 25395, 62148, 6942070, 6531275, 49478562, 43734254, 495550922, 209535782, 8412974158, 2628149192

Basic calculations (n = 81105057)

Multiplication

n×y
n×2 162210114
n×3 243315171
n×4 324420228
n×5 405525285

Division

n÷y
n÷2 40552528.5
n÷3 27035019
n÷3 20276264.25
n÷5 16221011.4

Exponentiation

ny
n2 6578030270973249
n3 5.3351152007501E+23
n4 4.327048224584E+31
n5 3.5094549289664E+39

Nth Root

y√n
2√n 9005.8346087412
3√n 432.86185004754
4√n 94.899075910892
5√n 38.177684688171

Divisors of 81105057

1, 9, 11, 81, 99, 227, 401, 891, 2043, 2497, 3609, 4411, 18387, 22473, 32481, 39699, 91027, 202257, 357291, 819243, 1001297, 7373187, 9011673, 81105057

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 -81105056
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 81105057 can be divided by 24 positive divisors. The sum of these divisors (counting 81105057) is 1, the average is 0.041666666666667.

Base conversion 81105057

Base System Value
2 Binary 100110101011001000010100001
3 Ternary 12122121120020000
4 Quaternary 10311121002201
5 Quinary 131230330212
6 Senary 12014210213
8 Octal 465310241
10 Decimal 81105057
12 Duodecimal 231b3969
16 Hexadecimal 4d590a1
20 Vigesimal 156i2ch
36 Base36 1cad29

Cryptographic Hash Functions

md5 a749880b4b7830b87ecc98b0edd975e4
sha1 ad50237b095fcf6a35833d4a0a8a85ac8bbc64ff
sha256 39e15c5540fe2468ced21d02d10cd259093a1e97772fe74df29c5913fdf84803
sha512 a8c9bf1e7ebd7c2772ce4bc87e93686eaac116a3bda29b7e108dab5e59d6e14d49257b3f242c6292e00046b9ecc722bedf823ca0117dc4779a887234d5e04877
ripemd-160 ee147254f17824c17601c3903587fef0b6b58024

81105057 as geometric shapes

Circle

Radius = n
Diameter 162210114
Circumference 509598102.48036
Area 2.0665491574381E+16

Sphere

Radius = n
Volume 2.2347678294309E+24
Surface area 8.2661966297523E+16
Circumference 509598102.48036

Square

Length = n
Perimeter 324420228
Area 6578030270973249
Diagonal 114699871.58644

Cube

Length = n
Surface area 39468181625839494
Volume 5.3351152007501E+23
Space diagonal 140478079.47477

Equilateral Triangle

Length = n
Perimeter 243315171
Area 2.8483706607629E+15
Altitude 70239039.737385

Triangular Pyramid

Length = n
Surface area 2.8483706607629E+15
Volume 6.2874935614364E+22
Height 38233290.528814