81510080 (number)

81510080 is an even 8-digits composite number following 81510079 and preceding 81510081. In scientific notation, it is written as 8.1510080 × 10^7. The sum of its digits is 23. It has a total of 9 prime factors and 56 positive divisors. There are 32274432 positive integers (up to 81510080) that are relatively prime to 81510080.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred ten thousand eighty

Notation

Scientific notation 8.1510080 × 10^7
Engineering notation 8.1510080 × 10^6

Prime Factorization of 81510080

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 5 × 103 × 2473

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 9
Total number of prime factors
rad Radical 2547190
Product of the distinct prime numbers

The prime factorization of 81510080 is 2 × 2 × 2 × 2 × 2 × 2 × 5 × 103 × 2473. Since it has a total of 9 prime factors.

Most popular turbo-numbers

3, 4, 95, 15, 687, 833, 3233, 1353, 23944, 72280, 489155, 4910, 5944986, 4309639, 29898333, 21416081, 924057720, 760836280, 3678309048, 9617310934

Basic calculations (n = 81510080)

Multiplication

n×y
n×2 163020160
n×3 244530240
n×4 326040320
n×5 407550400

Division

n÷y
n÷2 40755040
n÷3 27170026.666667
n÷3 20377520
n÷5 16302016

Exponentiation

ny
n2 6643893141606400
n3 5.4154426148379E+23
n4 4.4141316077085E+31
n5 3.5979622047484E+39

Nth Root

y√n
2√n 9028.2933049386
3√n 433.58119678994
4√n 95.017331602917
5√n 38.215739146932

Divisors of 81510080

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 103, 160, 206, 320, 412, 515, 824, 1030, 1648, 2060, 2473, 3296, 4120, 4946, 6592, 8240, 9892, 12365, 16480, 19784, 24730, 32960, 39568, 49460, 79136, 98920, 158272, 197840, 254719, 395680, 509438, 791360, 1018876, 1273595, 2037752, 2547190, 4075504, 5094380, 8151008, 10188760, 16302016, 20377520, 40755040, 81510080

56 divisors

τ Total Divisors 56
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81510079
Sum of the proper positive divisors of n
A Arithmetic Mean 0.017857142857143
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 56
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81510080 can be divided by 56 positive divisors. The sum of these divisors (counting 81510080) is 1, the average is 0.017857142857143.

Base conversion 81510080

Base System Value
2 Binary 100110110111011111011000000
3 Ternary 12200101010210212
4 Quaternary 10312323323000
5 Quinary 131331310310
6 Senary 12031013252
8 Octal 466737300
10 Decimal 81510080
12 Duodecimal 2336a228
16 Hexadecimal 4dbbec0
20 Vigesimal 1598f40
36 Base36 1cj1kw

Cryptographic Hash Functions

md5 8e62de2ef55aa149af995e3741f36128
sha1 5831b5ad6143a110b9f17a85ef4a789714eeb8c2
sha256 56d60a577935b273f24c8ee072bf86efffbf6eea368c8b41c06abe1a239ed44f
sha512 0e976dfd51aefea95853e32ed83564e1f1b8396c1193e1ad5a342795be70ec87952e99083bad8f8bc313e2ff3894c73688689fea0995e29d4de0c0564c143ccc
ripemd-160 6447839c37a305c510aa4addaa7797625b6f997a

81510080 as geometric shapes

Circle

Radius = n
Diameter 163020160
Circumference 512142937.04303
Area 2.0872405884906E+16

Sphere

Radius = n
Volume 2.2684152979616E+24
Surface area 8.3489623539625E+16
Circumference 512142937.04303

Square

Length = n
Perimeter 326040320
Area 6643893141606400
Diagonal 115272660.60612

Cube

Length = n
Surface area 39863358849638400
Volume 5.4154426148379E+23
Space diagonal 141179599.889

Equilateral Triangle

Length = n
Perimeter 244530240
Area 2.8768901203302E+15
Altitude 70589799.944502

Triangular Pyramid

Length = n
Surface area 2.8768901203302E+15
Volume 6.3821603267975E+22
Height 38424220.202039