81749862 (number)

81749862 is an even 8-digits composite number following 81749861 and preceding 81749863. In scientific notation, it is written as 8.1749862 × 10^7. The sum of its digits is 45. It has a total of 5 prime factors and 24 positive divisors. There are 27162096 positive integers (up to 81749862) that are relatively prime to 81749862.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred forty-nine thousand eight hundred sixty-two

Notation

Scientific notation 8.1749862 × 10^7
Engineering notation 8.1749862 × 10^6

Prime Factorization of 81749862

Prime Factorization 2 × 3 × 3 × 317 × 14327

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 27249954
Product of the distinct prime numbers

The prime factorization of 81749862 is 2 × 3 × 3 × 317 × 14327. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 4, 20, 23, 594, 109, 735, 8632, 62521, 90061, 158923, 567338, 8626353, 1932017, 96032826, 25150169, 711395401, 900798091, 2849924203, 848863780

Basic calculations (n = 81749862)

Multiplication

n×y
n×2 163499724
n×3 245249586
n×4 326999448
n×5 408749310

Division

n÷y
n÷2 40874931
n÷3 27249954
n÷3 20437465.5
n÷5 16349972.4

Exponentiation

ny
n2 6683039937019044
n3 5.463375925918E+23
n4 4.4663022799792E+31
n5 3.6511959503858E+39

Nth Root

y√n
2√n 9041.5630285919
3√n 434.00594256624
4√n 95.087133875156
5√n 38.238196940476

Divisors of 81749862

1, 2, 3, 6, 9, 18, 317, 634, 951, 1902, 2853, 5706, 14327, 28654, 42981, 85962, 128943, 257886, 4541659, 9083318, 13624977, 27249954, 40874931, 81749862

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 -81749861
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 81749862 can be divided by 24 positive divisors. The sum of these divisors (counting 81749862) is 1, the average is 0.041666666666667.

Base conversion 81749862

Base System Value
2 Binary 100110111110110011101100110
3 Ternary 12200211022201200
4 Quaternary 10313312131212
5 Quinary 131411443422
6 Senary 12040103330
8 Octal 467663546
10 Decimal 81749862
12 Duodecimal 23464b46
16 Hexadecimal 4df6766
20 Vigesimal 15aied2
36 Base36 1co6li

Cryptographic Hash Functions

md5 69c7c5013a3838ec2232ea4b9de11ffc
sha1 a2ce23db8e330e29a147ed8d4af69b306db335a4
sha256 32b942a18b5f6a3206827558cc86cfcb2e5d6b186f25a53e5ab1e1939d02fd5e
sha512 eedfca3c2d0129791b27d7bb1bf22a51c64115ae61f0baf54b95b4f20b30a6c9b2beae268d24fa584b307761ae2514ded034dd40857bb0b43d4497eba7ddbc57
ripemd-160 e20f6d72dadcbb91d76eb94e3df971526ee33d0a

81749862 as geometric shapes

Circle

Radius = n
Diameter 163499724
Circumference 513649531.78236
Area 2.0995389169786E+16

Sphere

Radius = n
Volume 2.2884935563551E+24
Surface area 8.3981556679145E+16
Circumference 513649531.78236

Square

Length = n
Perimeter 326999448
Area 6683039937019044
Diagonal 115611763.56253

Cube

Length = n
Surface area 40098239622114264
Volume 5.463375925918E+23
Space diagonal 141594914.49574

Equilateral Triangle

Length = n
Perimeter 245249586
Area 2.8938411799822E+15
Altitude 70797457.247872

Triangular Pyramid

Length = n
Surface area 2.8938411799822E+15
Volume 6.4386502756465E+22
Height 38537254.520843