18912 (number)

18912 is an even 5-digits composite number following 18911 and preceding 18913. In scientific notation, it is written as 1.8912 × 10^4. The sum of its digits is 21. It has a total of 7 prime factors and 24 positive divisors. There are 6272 positive integers (up to 18912) that are relatively prime to 18912.

Interesting facts

Basic properties

Name

Name eighteen thousand nine hundred twelve

Notation

Scientific notation 1.8912 × 10^4
Engineering notation 1.8912 × 10^3

Prime Factorization of 18912

Prime Factorization 2 × 2 × 2 × 2 × 2 × 3 × 197

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 1182
Product of the distinct prime numbers

The prime factorization of 18912 is 2 × 2 × 2 × 2 × 2 × 3 × 197. Since it has a total of 7 prime factors.

Most popular turbo-numbers

10, 7, 61, 77, 72, 893, 745, 8539, 62348, 21067, 55943, 319274, 662545, 8709187, 63245863, 98802868, 564507481, 767613849, 880831218, 8909070343

Basic calculations (n = 18912)

Multiplication

n×y
n×2 37824
n×3 56736
n×4 75648
n×5 94560

Division

n÷y
n÷2 9456
n÷3 6304
n÷3 4728
n÷5 3782.4

Exponentiation

ny
n2 357663744
n3 6764136726528
n4 127923353772097536
n5 2.4192864665379E+21

Nth Root

y√n
2√n 137.52090750137
3√n 26.642756345305
4√n 11.726930864526
5√n 7.1671664700529

Divisors of 18912

1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 197, 394, 591, 788, 1182, 1576, 2364, 3152, 4728, 6304, 9456, 18912

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 -18911
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 18912 can be divided by 24 positive divisors. The sum of these divisors (counting 18912) is 1, the average is 0.041666666666667.

Base conversion 18912

Base System Value
2 Binary 100100111100000
3 Ternary 221221110
4 Quaternary 10213200
5 Quinary 1101122
6 Senary 223320
8 Octal 44740
10 Decimal 18912
12 Duodecimal ab40
16 Hexadecimal 49e0
20 Vigesimal 275c
36 Base36 elc

Cryptographic Hash Functions

md5 a68cb11c77763c9de8861dd0dd2eaee5
sha1 c217fd37e7d15be2047b95c1c1a95d68624e889f
sha256 402ec783abe582760c38c2a474bc107d2c85e1474ebf2cd0464679d5201c2f25
sha512 54dac4905433f214cfed5f15ba1d0cc2c8ea07c3f8d1fa6f6d9d9742e56062f67884e6f034db6794917d796999177e28d63296ddd2b1f333d95792efd68d464d
ripemd-160 4f84005766d68e2b12902d87b30bbfe99f4ff071

18912 as geometric shapes

Circle

Radius = n
Diameter 37824
Circumference 118827.60052938
Area 1123633790.6058

Sphere

Radius = n
Volume 28333549663916
Surface area 4494535162.4233
Circumference 118827.60052938

Square

Length = n
Perimeter 75648
Area 357663744
Diagonal 26745.6068916

Cube

Length = n
Surface area 2145982464
Volume 6764136726528
Space diagonal 32756.544872743

Equilateral Triangle

Length = n
Perimeter 56736
Area 154872944.15833
Altitude 16378.272436371

Triangular Pyramid

Length = n
Surface area 154872944.15833
Volume 797161158033.49
Height 8915.2022972