81072584 (number)

81072584 is an even 8-digits composite number following 81072583 and preceding 81072585. In scientific notation, it is written as 8.1072584 × 10^7. The sum of its digits is 35. It has a total of 5 prime factors and 16 positive divisors. There are 40244112 positive integers (up to 81072584) that are relatively prime to 81072584.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1072584 × 10^7
Engineering notation 8.1072584 × 10^6

Prime Factorization of 81072584

Prime Factorization 2 × 2 × 2 × 139 × 72907

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20268146
Product of the distinct prime numbers

The prime factorization of 81072584 is 2 × 2 × 2 × 139 × 72907. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 1, 80, 80, 395, 844, 1819, 7836, 21645, 53368, 603493, 179589, 4593979, 6390075, 51601437, 7446739, 694334850, 727921635, 9729981943, 1638722253

Basic calculations (n = 81072584)

Multiplication

n×y
n×2 162145168
n×3 243217752
n×4 324290336
n×5 405362920

Division

n÷y
n÷2 40536292
n÷3 27024194.666667
n÷3 20268146
n÷5 16214516.8

Exponentiation

ny
n2 6572763876437056
n3 5.3287095148461E+23
n4 4.3201224975396E+31
n5 3.5024349407207E+39

Nth Root

y√n
2√n 9004.0315414818
3√n 432.80407231349
4√n 94.889575515342
5√n 38.17462706736

Divisors of 81072584

1, 2, 4, 8, 139, 278, 556, 1112, 72907, 145814, 291628, 583256, 10134073, 20268146, 40536292, 81072584

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 -81072583
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 81072584 can be divided by 16 positive divisors. The sum of these divisors (counting 81072584) is 1, the average is 0.0625.

Base conversion 81072584

Base System Value
2 Binary 100110101010001000111001000
3 Ternary 12122112220200022
4 Quaternary 10311101013020
5 Quinary 131223310314
6 Senary 12013400012
8 Octal 465210710
10 Decimal 81072584
12 Duodecimal 23199008
16 Hexadecimal 4d511c8
20 Vigesimal 156e194
36 Base36 1c9o08

Cryptographic Hash Functions

md5 8858dfc70122a421c5e23c07ea830304
sha1 f496fe336418c5a18e67e24a11629f351a657fd8
sha256 8d5645498397082db90c852886706cf3234a79d904b8d4623f38bf0a285bdafc
sha512 e9164f131a1c4df116d364e7efc80c8a6ccbb53b5cfccc7971ebcbf7599c0be077c87f13a0d30a210a9f1459b54af541e8bdc6ff6537d68f4a2d05183d1eccb7
ripemd-160 5e3ee518e03469a64a05efda756492373711935e

81072584 as geometric shapes

Circle

Radius = n
Diameter 162145168
Circumference 509394068.60388
Area 2.0648946707995E+16

Sphere

Radius = n
Volume 2.2320846219939E+24
Surface area 8.259578683198E+16
Circumference 509394068.60388

Square

Length = n
Perimeter 324290336
Area 6572763876437056
Diagonal 114653947.82943

Cube

Length = n
Surface area 39436583258622336
Volume 5.3287095148461E+23
Space diagonal 140421834.5889

Equilateral Triangle

Length = n
Perimeter 243217752
Area 2.8460902450356E+15
Altitude 70210917.294448

Triangular Pyramid

Length = n
Surface area 2.8460902450356E+15
Volume 6.2799443882016E+22
Height 38217982.609811