18881013 (number)

18881013 is an odd 8-digits composite number following 18881012 and preceding 18881014. In scientific notation, it is written as 1.8881013 × 10^7. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 12565584 positive integers (up to 18881013) that are relatively prime to 18881013.

Interesting facts

Basic properties

Name

Name eighteen million eight hundred eighty-one thousand thirteen

Notation

Scientific notation 1.8881013 × 10^7
Engineering notation 1.8881013 × 10^6

Prime Factorization of 18881013

Prime Factorization 3 × 613 × 10267

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 18881013
Product of the distinct prime numbers

The prime factorization of 18881013 is 3 × 613 × 10267. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 18881013)

Multiplication

n×y
n×2 37762026
n×3 56643039
n×4 75524052
n×5 94405065

Division

n÷y
n÷2 9440506.5
n÷3 6293671
n÷3 4720253.25
n÷5 3776202.6

Exponentiation

ny
n2 356492651906169
n3 6.7309423950449E+21
n4 1.2708701086309E+29
n5 2.3995315042372E+36

Nth Root

y√n
2√n 4345.2287626775
3√n 266.2819715183
4√n 65.918349210804
5√n 28.523647337565

Divisors of 18881013

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18881012
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18881013 can be divided by 8 positive divisors. The sum of these divisors (counting 18881013) is 1, the average is 0.125.

Base conversion 18881013

Base System Value
2 Binary 1001000000001100111110101
3 Ternary 1022112020212210
4 Quaternary 1020001213311
5 Quinary 14313143023
6 Senary 1512404033
8 Octal 110014765
10 Decimal 18881013
12 Duodecimal 63a6619
16 Hexadecimal 12019f5
20 Vigesimal 5i02ad
36 Base36 b8ool

Cryptographic Hash Functions

md5 f87f2067bc6b5215b5a810f0d070f45f
sha1 e5ce70e4e8b52491f63bf10aa7630442ec79efb8
sha256 a65ba6cc91d2af422906c00b3e0c05389d6aa8119a35e71524e5b09b3a7d4df8
sha512 a772600ac73519c9a54dad7de2f935407c2e91a3457f79fb17a5b600aeb28b43e5839e8e4e3f861d2008ba26e349db56d6ef4b62d87aa183c8ab2989f5ade0a4
ripemd-160 8518d09b1424c860098b553d2eb5ab0528c33d8f

18881013 as geometric shapes

Circle

Radius = n
Diameter 37762026
Circumference 118632903.46627
Area 1.1199546962872E+15

Sphere

Radius = n
Volume 2.8194505573345E+22
Surface area 4.4798187851487E+15
Circumference 118632903.46627

Square

Length = n
Perimeter 75524052
Area 356492651906169
Diagonal 26701784.655943

Cube

Length = n
Surface area 2138955911437014
Volume 6.7309423950449E+21
Space diagonal 32702873.814368

Equilateral Triangle

Length = n
Perimeter 56643039
Area 1.5436584640661E+14
Altitude 16351436.907184

Triangular Pyramid

Length = n
Surface area 1.5436584640661E+14
Volume 7.9324916855204E+20
Height 8900594.8853142