81587025 (number)

81587025 is an odd 8-digits composite number following 81587024 and preceding 81587026. In scientific notation, it is written as 8.1587025 × 10^7. The sum of its digits is 36. It has a total of 6 prime factors and 36 positive divisors. There are 40164480 positive integers (up to 81587025) that are relatively prime to 81587025.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred eighty-seven thousand twenty-five

Notation

Scientific notation 8.1587025 × 10^7
Engineering notation 8.1587025 × 10^6

Prime Factorization of 81587025

Prime Factorization 3 × 5 × 3 × 5 × 13 × 27893

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 5439135
Product of the distinct prime numbers

The prime factorization of 81587025 is 3 × 5 × 3 × 5 × 13 × 27893. Since it has a total of 6 prime factors.

Most popular turbo-numbers

1, 7, 4, 11, 708, 138, 4919, 6330, 92910, 80315, 93018, 501206, 1728237, 9335513, 49191555, 9215661, 903683758, 764829848, 5194265942, 8982753469

Basic calculations (n = 81587025)

Multiplication

n×y
n×2 163174050
n×3 244761075
n×4 326348100
n×5 407935125

Division

n÷y
n÷2 40793512.5
n÷3 27195675
n÷3 20396756.25
n÷5 16317405

Exponentiation

ny
n2 6656442648350625
n3 5.4307935276205E+23
n4 4.4308228730781E+31
n5 3.614976565164E+39

Nth Root

y√n
2√n 9032.5536256366
3√n 433.71758651777
4√n 95.039747609285
5√n 38.222951507287

Divisors of 81587025

1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 195, 225, 325, 585, 975, 2925, 27893, 83679, 139465, 251037, 362609, 418395, 697325, 1087827, 1255185, 1813045, 2091975, 3263481, 5439135, 6275925, 9065225, 16317405, 27195675, 81587025

36 divisors

τ Total Divisors 36
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81587024
Sum of the proper positive divisors of n
A Arithmetic Mean 0.027777777777778
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 36
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81587025 can be divided by 36 positive divisors. The sum of these divisors (counting 81587025) is 1, the average is 0.027777777777778.

Base conversion 81587025

Base System Value
2 Binary 100110111001110101101010001
3 Ternary 12200112001100200
4 Quaternary 10313032231101
5 Quinary 131341241100
6 Senary 12032405413
8 Octal 467165521
10 Decimal 81587025
12 Duodecimal 233a6869
16 Hexadecimal 4dceb51
20 Vigesimal 159i7b5
36 Base36 1ckoy9

Cryptographic Hash Functions

md5 748b4c39a6241a27ee8c15ad79765cc8
sha1 42d3fb1953df7b76a43af51f0a1e2d4bc6bfcb39
sha256 5247c51fa30d173c24f46cddfa8b71005bfa2b780d2c51895d24600a15bd7600
sha512 70a6db8de07b6bdeda1780315e59652a822ce068d5d132e4558e8017376cac4caa74286048581b7474b7b32d67534f1429e3a39e0c34d9413031ae2e51c35e15
ripemd-160 dc4a82ae3ec8b44854afc602d65da668931efa48

81587025 as geometric shapes

Circle

Radius = n
Diameter 163174050
Circumference 512626396.73649
Area 2.09118313231E+16

Sphere

Radius = n
Volume 2.2748454732714E+24
Surface area 8.36473252924E+16
Circumference 512626396.73649

Square

Length = n
Perimeter 326348100
Area 6656442648350625
Diagonal 115381477.26867

Cube

Length = n
Surface area 39938655890103750
Volume 5.4307935276205E+23
Space diagonal 141312872.53839

Equilateral Triangle

Length = n
Perimeter 244761075
Area 2.8823242161529E+15
Altitude 70656436.269196

Triangular Pyramid

Length = n
Surface area 2.8823242161529E+15
Volume 6.4002515510074E+22
Height 38460492.422891