81279025 (number)

81279025 is an odd 8-digits composite number following 81279024 and preceding 81279026. In scientific notation, it is written as 8.1279025 × 10^7. The sum of its digits is 34. It has a total of 5 prime factors and 24 positive divisors. There are 61857600 positive integers (up to 81279025) that are relatively prime to 81279025.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred seventy-nine thousand twenty-five

Notation

Scientific notation 8.1279025 × 10^7
Engineering notation 8.1279025 × 10^6

Prime Factorization of 81279025

Prime Factorization 5 × 5 × 71 × 29 × 1579

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 16255805
Product of the distinct prime numbers

The prime factorization of 81279025 is 5 × 5 × 71 × 29 × 1579. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 10, 3, 84, 959, 854, 651, 5626, 25576, 57044, 682460, 451782, 1185453, 4609728, 18484045, 18698589, 427618442, 520073542, 6471148708, 2663518001

Basic calculations (n = 81279025)

Multiplication

n×y
n×2 162558050
n×3 243837075
n×4 325116100
n×5 406395125

Division

n÷y
n÷2 40639512.5
n÷3 27093008.333333
n÷3 20319756.25
n÷5 16255805

Exponentiation

ny
n2 6606279904950625
n3 5.3695198955148E+23
n4 4.3642934182554E+31
n5 3.5472551384972E+39

Nth Root

y√n
2√n 9015.4880622183
3√n 433.17112107399
4√n 94.94992397163
5√n 38.19404865984

Divisors of 81279025

1, 5, 25, 29, 71, 145, 355, 725, 1579, 1775, 2059, 7895, 10295, 39475, 45791, 51475, 112109, 228955, 560545, 1144775, 2802725, 3251161, 16255805, 81279025

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 -81279024
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 81279025 can be divided by 24 positive divisors. The sum of these divisors (counting 81279025) is 1, the average is 0.041666666666667.

Base conversion 81279025

Base System Value
2 Binary 100110110000011100000110001
3 Ternary 12122221101212021
4 Quaternary 10312003200301
5 Quinary 131301412100
6 Senary 12022031441
8 Octal 466034061
10 Decimal 81279025
12 Duodecimal 23278581
16 Hexadecimal 4d83831
20 Vigesimal 157jhb5
36 Base36 1ce3ap

Cryptographic Hash Functions

md5 15e85d2f3cdcdd6f0709000f0f09d702
sha1 64abfac2272ded8b83aeab88fab56d6597c9f10f
sha256 e39a5eba2853c8a8ed1c5b3ab266bebf9c07669c0ccb1e3cc7b1fd266be2946b
sha512 b9bc8b0248b43a7615ac51cc36b1d127f7b8933600f35f6edb1c76e1c4946118ddddcb20ca7ee8a54c3b50d5fbf232d3f7777b0b34ac51f70e96b222adf48a89
ripemd-160 14ba5f94ce5144a7fbc2963af7f5d59939f502a6

81279025 as geometric shapes

Circle

Radius = n
Diameter 162558050
Circumference 510691175.66188
Area 2.0754240416951E+16

Sphere

Radius = n
Volume 2.2491792342738E+24
Surface area 8.3016961667803E+16
Circumference 510691175.66188

Square

Length = n
Perimeter 325116100
Area 6606279904950625
Diagonal 114945899.49146

Cube

Length = n
Surface area 39637679429703750
Volume 5.3695198955148E+23
Space diagonal 140779400.88966

Equilateral Triangle

Length = n
Perimeter 243837075
Area 2.8606031110989E+15
Altitude 70389700.44483

Triangular Pyramid

Length = n
Surface area 2.8606031110989E+15
Volume 6.3280398830577E+22
Height 38315299.830487