81550139 (number)

81550139 is an odd 8-digits composite number following 81550138 and preceding 81550140. In scientific notation, it is written as 8.1550139 × 10^7. The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors. There are 69775360 positive integers (up to 81550139) that are relatively prime to 81550139.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred fifty thousand one hundred thirty-nine

Notation

Scientific notation 8.1550139 × 10^7
Engineering notation 8.1550139 × 10^6

Prime Factorization of 81550139

Prime Factorization 17 × 11 × 436097

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81550139
Product of the distinct prime numbers

The prime factorization of 81550139 is 17 × 11 × 436097. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 6, 100, 91, 326, 936, 3639, 519, 13699, 48906, 610669, 66052, 260797, 5907555, 39523958, 84827847, 471814786, 80123831, 2326460764, 4611236816

Basic calculations (n = 81550139)

Multiplication

n×y
n×2 163100278
n×3 244650417
n×4 326200556
n×5 407750695

Division

n÷y
n÷2 40775069.5
n÷3 27183379.666667
n÷3 20387534.75
n÷5 16310027.8

Exponentiation

ny
n2 6650425170919321
n3 5.4234309709757E+23
n4 4.4228154953997E+31
n5 3.606812184212E+39

Nth Root

y√n
2√n 9030.5115580459
3√n 433.65221452817
4√n 95.029003772774
5√n 38.21949471541

Divisors of 81550139

1, 11, 17, 187, 436097, 4797067, 7413649, 81550139

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81550138
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81550139 can be divided by 8 positive divisors. The sum of these divisors (counting 81550139) is 1, the average is 0.125.

Base conversion 81550139

Base System Value
2 Binary 100110111000101101100111011
3 Ternary 12200110011202112
4 Quaternary 10313011230323
5 Quinary 131334101024
6 Senary 12031522535
8 Octal 467055473
10 Decimal 81550139
12 Duodecimal 2338944b
16 Hexadecimal 4dc5b3b
20 Vigesimal 159df6j
36 Base36 1cjwhn

Cryptographic Hash Functions

md5 a9e4a448620dd5972a0138febd3aef2e
sha1 933aa15f5af8b54bd3bb28fb770945b40d62b258
sha256 1c2c896153f7a576162d4b9b8974273181b2095c9507ea3627fd3d81f8f65307
sha512 721df033ed150cb329d452945a3ba68e2f64ea8f82c79d29279c9cfdc2382cd119ec0359e5d9edfba78d642125339963f4272b006fc635d1f3fb24fd4e8fc86e
ripemd-160 4a93f927e4262580896680df61a166f0ec2ccb34

81550139 as geometric shapes

Circle

Radius = n
Diameter 163100278
Circumference 512394635.16325
Area 2.0892926860209E+16

Sphere

Radius = n
Volume 2.2717614527558E+24
Surface area 8.3571707440835E+16
Circumference 512394635.16325

Square

Length = n
Perimeter 326200556
Area 6650425170919321
Diagonal 115329312.58721

Cube

Length = n
Surface area 39902551025515926
Volume 5.4234309709757E+23
Space diagonal 141248984.1123

Equilateral Triangle

Length = n
Perimeter 244650417
Area 2.8797185719918E+15
Altitude 70624492.056152

Triangular Pyramid

Length = n
Surface area 2.8797185719918E+15
Volume 6.3915746947901E+22
Height 38443104.195737