81072810 (number)

81072810 is an even 8-digits composite number following 81072809 and preceding 81072811. In scientific notation, it is written as 8.1072810 × 10^7. The sum of its digits is 27. It has a total of 5 prime factors and 32 positive divisors. There are 16174080 positive integers (up to 81072810) that are relatively prime to 81072810.

Interesting facts

Basic properties

Name

Name eighty-one million seventy-two thousand eight hundred ten

Notation

Scientific notation 8.1072810 × 10^7
Engineering notation 8.1072810 × 10^6

Prime Factorization of 81072810

Prime Factorization 2 × 585 × 7 × 19 × 521

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81072810
Product of the distinct prime numbers

The prime factorization of 81072810 is 2 × 585 × 7 × 19 × 521. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 10, 79, 72, 914, 327, 4738, 1444, 23795, 41939, 876632, 768974, 3851205, 5261393, 33553153, 54926779, 5184263, 636786234, 4465137953, 5336672196

Basic calculations (n = 81072810)

Multiplication

n×y
n×2 162145620
n×3 243218430
n×4 324291240
n×5 405364050

Division

n÷y
n÷2 40536405
n÷3 27024270
n÷3 20268202.5
n÷5 16214562

Exponentiation

ny
n2 6572800521296100
n3 5.3287540783094E+23
n4 4.320170669275E+31
n5 3.5024837583771E+39

Nth Root

y√n
2√n 9004.0440914069
3√n 432.80447447834
4√n 94.889641644423
5√n 38.174648350648

Divisors of 81072810

1, 2, 7, 14, 19, 38, 133, 266, 521, 585, 1042, 1170, 3647, 4095, 7294, 8190, 9899, 11115, 19798, 22230, 69293, 77805, 138586, 155610, 304785, 609570, 2133495, 4266990, 5790915, 11581830, 40536405, 81072810

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81072809
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81072810 can be divided by 32 positive divisors. The sum of these divisors (counting 81072810) is 1, the average is 0.03125.

Base conversion 81072810

Base System Value
2 Binary 100110101010001001010101010
3 Ternary 12122112220222200
4 Quaternary 10311101022222
5 Quinary 131223312220
6 Senary 12013401030
8 Octal 465211252
10 Decimal 81072810
12 Duodecimal 23199176
16 Hexadecimal 4d512aa
20 Vigesimal 156e20a
36 Base36 1c9o6i

Cryptographic Hash Functions

md5 646ea0b7cd04d044c206200636cae93c
sha1 5c87b66356de2c752b8382b88a96e7030ba72af4
sha256 402b5b03d4a7e7ca9c8b24b1dafa2d4ee381db0cf2ac889c9422a759f700b88c
sha512 7b4ee4a5f55f3ccc92592a5e1172c4f3a62ea040edc7b869e0c802326b4401a4bbe8febc8a2a8413c54975376a6f2d55374ed8eae81415252fe095dbaac7dce8
ripemd-160 ee2aba0457df8730e0fff964a66095e08400b101

81072810 as geometric shapes

Circle

Radius = n
Diameter 162145620
Circumference 509395488.60376
Area 2.0649061831215E+16

Sphere

Radius = n
Volume 2.2321032886938E+24
Surface area 8.259624732486E+16
Circumference 509395488.60376

Square

Length = n
Perimeter 324291240
Area 6572800521296100
Diagonal 114654267.4417

Cube

Length = n
Surface area 39436803127776600
Volume 5.3287540783094E+23
Space diagonal 140422226.03238

Equilateral Triangle

Length = n
Perimeter 243218430
Area 2.846106112725E+15
Altitude 70211113.016189

Triangular Pyramid

Length = n
Surface area 2.846106112725E+15
Volume 6.2799969067467E+22
Height 38218089.147232