81072590 (number)

81072590 is an even 8-digits composite number following 81072589 and preceding 81072591. In scientific notation, it is written as 8.1072590 × 10^7. The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors. There are 32398080 positive integers (up to 81072590) that are relatively prime to 81072590.

Interesting facts

Basic properties

Name

Name eighty-one million seventy-two thousand five hundred ninety

Notation

Scientific notation 8.1072590 × 10^7
Engineering notation 8.1072590 × 10^6

Prime Factorization of 81072590

Prime Factorization 2 × 5 × 6491 × 1249

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81072590
Product of the distinct prime numbers

The prime factorization of 81072590 is 2 × 5 × 6491 × 1249. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 1, 87, 50, 437, 295, 6538, 228, 75484, 31500, 692758, 899603, 8519686, 1456677, 44061256, 81635061, 479329602, 372754468, 2728299756, 3608503059

Basic calculations (n = 81072590)

Multiplication

n×y
n×2 162145180
n×3 243217770
n×4 324290360
n×5 405362950

Division

n÷y
n÷2 40536295
n÷3 27024196.666667
n÷3 20268147.5
n÷5 16214518

Exponentiation

ny
n2 6572764849308100
n3 5.3287106979437E+23
n4 4.32012377643E+31
n5 3.5024362367576E+39

Nth Root

y√n
2√n 9004.0318746659
3√n 432.80408299044
4√n 94.889577270983
5√n 38.174627632403

Divisors of 81072590

1, 2, 5, 10, 1249, 2498, 6245, 6491, 12490, 12982, 32455, 64910, 8107259, 16214518, 40536295, 81072590

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81072589
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81072590 can be divided by 16 positive divisors. The sum of these divisors (counting 81072590) is 1, the average is 0.0625.

Base conversion 81072590

Base System Value
2 Binary 100110101010001000111001110
3 Ternary 12122112220200112
4 Quaternary 10311101013032
5 Quinary 131223310330
6 Senary 12013400022
8 Octal 465210716
10 Decimal 81072590
12 Duodecimal 23199012
16 Hexadecimal 4d511ce
20 Vigesimal 156e19a
36 Base36 1c9o0e

Cryptographic Hash Functions

md5 2fb54869caaaf54c2d308e3dbebdb525
sha1 c4d7a73d46bfa8f94c8872975e7df82f1da9449c
sha256 d4cb3a67e3d10fd5e4d184fd332ddd34d490973222b6eb1828e8f6e8591001ea
sha512 b14f89e278919016322622b409269947dde3470ee4cec885717f7acc4595829227b11c8ee42a49f8edd8f6c6daad01596db6bf33ee2a03aca4f8d6ac7de9ac15
ripemd-160 f900abfda015f6039549aedf7160c8ce07ddbbc7

81072590 as geometric shapes

Circle

Radius = n
Diameter 162145180
Circumference 509394106.30299
Area 2.064894976436E+16

Sphere

Radius = n
Volume 2.2320851175687E+24
Surface area 8.2595799057438E+16
Circumference 509394106.30299

Square

Length = n
Perimeter 324290360
Area 6572764849308100
Diagonal 114653956.31471

Cube

Length = n
Surface area 39436589095848600
Volume 5.3287106979437E+23
Space diagonal 140421844.9812

Equilateral Triangle

Length = n
Perimeter 243217770
Area 2.8460906663011E+15
Altitude 70210922.4906

Triangular Pyramid

Length = n
Surface area 2.8460906663011E+15
Volume 6.2799457824955E+22
Height 38217985.438238