81124518 (number)

81124518 is an even 8-digits composite number following 81124517 and preceding 81124519. In scientific notation, it is written as 8.1124518 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 27024360 positive integers (up to 81124518) that are relatively prime to 81124518.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred twenty-four thousand five hundred eighteen

Notation

Scientific notation 8.1124518 × 10^7
Engineering notation 8.1124518 × 10^6

Prime Factorization of 81124518

Prime Factorization 2 × 3 × 6491 × 2083

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81124518
Product of the distinct prime numbers

The prime factorization of 81124518 is 2 × 3 × 6491 × 2083. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 6, 15, 51, 787, 440, 2090, 373, 10875, 62049, 309254, 685902, 6292217, 2025974, 60554570, 50526637, 62925834, 7189368, 1150153761, 4744823370

Basic calculations (n = 81124518)

Multiplication

n×y
n×2 162249036
n×3 243373554
n×4 324498072
n×5 405622590

Division

n÷y
n÷2 40562259
n÷3 27041506
n÷3 20281129.5
n÷5 16224903.6

Exponentiation

ny
n2 6581187420732324
n3 5.3389565737457E+23
n4 4.3312027866805E+31
n5 3.5136673842972E+39

Nth Root

y√n
2√n 9006.9150101464
3√n 432.89646873059
4√n 94.904768110703
5√n 38.179516644523

Divisors of 81124518

1, 2, 3, 6, 2083, 4166, 6249, 6491, 12498, 12982, 19473, 38946, 13520753, 27041506, 40562259, 81124518

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81124517
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81124518 can be divided by 16 positive divisors. The sum of these divisors (counting 81124518) is 1, the average is 0.0625.

Base conversion 81124518

Base System Value
2 Binary 100110101011101110010100110
3 Ternary 12122122112220210
4 Quaternary 10311131302212
5 Quinary 131231441033
6 Senary 12014440250
8 Octal 465356246
10 Decimal 81124518
12 Duodecimal 23203086
16 Hexadecimal 4d5dca6
20 Vigesimal 1570b5i
36 Base36 1cas2u

Cryptographic Hash Functions

md5 ef0d6a8ed281a94e7d98a73ccf817e5e
sha1 dbd7b80d64081ec7230a2c38e08c0bf54f2f0cb5
sha256 739223367d2ae8741e5104dfda8bed7170d5409a7b2575f78908da724b16b197
sha512 8c5fba7c1832ee4f37b5b5bc57698cfd04608d293d529843b2e16c0f92f56b46acdb6e2caf593cc11d3a35c1909e6b7cba0ecc6206a284bb84c8177c06b03b63
ripemd-160 4fce904002c148d13c894eec5fdd7e22f4c5d83c

81124518 as geometric shapes

Circle

Radius = n
Diameter 162249036
Circumference 509720379.54963
Area 2.067541005287E+16

Sphere

Radius = n
Volume 2.2363768999886E+24
Surface area 8.2701640211481E+16
Circumference 509720379.54963

Square

Length = n
Perimeter 324498072
Area 6581187420732324
Diagonal 114727393.59658

Cube

Length = n
Surface area 39487124524393944
Volume 5.3389565737457E+23
Space diagonal 140511786.91554

Equilateral Triangle

Length = n
Perimeter 243373554
Area 2.8497377467104E+15
Altitude 70255893.457768

Triangular Pyramid

Length = n
Surface area 2.8497377467104E+15
Volume 6.2920206629268E+22
Height 38242464.532193