81260520 (number)

81260520 is an even 8-digits composite number following 81260519 and preceding 81260521. In scientific notation, it is written as 8.1260520 × 10^7. The sum of its digits is 24. It has a total of 7 prime factors and 64 positive divisors. There are 19699200 positive integers (up to 81260520) that are relatively prime to 81260520.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred sixty thousand five hundred twenty

Notation

Scientific notation 8.1260520 × 10^7
Engineering notation 8.1260520 × 10^6

Prime Factorization of 81260520

Prime Factorization 2 × 2 × 2 × 5 × 3 × 11 × 61561

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 20315130
Product of the distinct prime numbers

The prime factorization of 81260520 is 2 × 2 × 2 × 5 × 3 × 11 × 61561. Since it has a total of 7 prime factors.

Most popular turbo-numbers

9, 4, 70, 73, 203, 697, 4943, 8111, 54118, 94276, 697963, 15253, 4303528, 8246230, 84278264, 19388949, 717431242, 403493063, 3376515708, 6194002128

Basic calculations (n = 81260520)

Multiplication

n×y
n×2 162521040
n×3 243781560
n×4 325042080
n×5 406302600

Division

n÷y
n÷2 40630260
n÷3 27086840
n÷3 20315130
n÷5 16252104

Exponentiation

ny
n2 6603272110670400
n3 5.3658532541457E+23
n4 4.3603202567558E+31
n5 3.5432189143051E+39

Nth Root

y√n
2√n 9014.4617143787
3√n 433.13824485941
4√n 94.944519138172
5√n 38.192309354417

Divisors of 81260520

1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 61561, 123122, 184683, 246244, 307805, 369366, 492488, 615610, 677171, 738732, 923415, 1231220, 1354342, 1477464, 1846830, 2031513, 2462440, 2708684, 3385855, 3693660, 4063026, 5417368, 6771710, 7387320, 8126052, 10157565, 13543420, 16252104, 20315130, 27086840, 40630260, 81260520

64 divisors

τ Total Divisors 64
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81260519
Sum of the proper positive divisors of n
A Arithmetic Mean 0.015625
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 64
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81260520 can be divided by 64 positive divisors. The sum of these divisors (counting 81260520) is 1, the average is 0.015625.

Base conversion 81260520

Base System Value
2 Binary 100110101111110111111101000
3 Ternary 12122220110110220
4 Quaternary 10311332333220
5 Quinary 131300314040
6 Senary 12021410040
8 Octal 465767750
10 Decimal 81260520
12 Duodecimal 23269920
16 Hexadecimal 4d7efe8
20 Vigesimal 157hb60
36 Base36 1cdp0o

Cryptographic Hash Functions

md5 7a72a4b74e282e82dd28ecd1336ae146
sha1 57e9236d5d5d122a14315bf0bcc3a956de7e08f2
sha256 717bdc1bf882ef3f9cb3eaa069e7bc0bf647bddbd1703140f675ad7f1c7efbec
sha512 d6d55a1a3d1a6b03c4770f2ff2f32a1ede1103466efdc8f877a041370bb9fcae2cd415aae53b795a5018685ad4edd1709a64f159e25d9999caaf5a8e407cdeee
ripemd-160 96dfbff69e3fe7bbbe0156685499773beb7109e8

81260520 as geometric shapes

Circle

Radius = n
Diameter 162521040
Circumference 510574905.31777
Area 2.0744791152536E+16

Sphere

Radius = n
Volume 2.2476433551287E+24
Surface area 8.2979164610146E+16
Circumference 510574905.31777

Square

Length = n
Perimeter 325042080
Area 6603272110670400
Diagonal 114919729.46949

Cube

Length = n
Surface area 39619632664022400
Volume 5.3658532541457E+23
Space diagonal 140747349.28947

Equilateral Triangle

Length = n
Perimeter 243781560
Area 2.8593006979709E+15
Altitude 70373674.644733

Triangular Pyramid

Length = n
Surface area 2.8593006979709E+15
Volume 6.3237187047639E+22
Height 38306576.48983