20131218 (number)

20131218 is an even 8-digits composite number following 20131217 and preceding 20131219. In scientific notation, it is written as 2.0131218 × 10^7. The sum of its digits is 18. It has a total of 4 prime factors and 16 positive divisors. There are 6686712 positive integers (up to 20131218) that are relatively prime to 20131218.

Interesting facts

Basic properties

Name

Name twenty million one hundred thirty-one thousand two hundred eighteen

Notation

Scientific notation 2.0131218 × 10^7
Engineering notation 2.0131218 × 10^6

Prime Factorization of 20131218

Prime Factorization 2 × 9 × 307 × 3643

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20131218
Product of the distinct prime numbers

The prime factorization of 20131218 is 2 × 9 × 307 × 3643. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 4, 27, 48, 878, 399, 523, 5188, 79058, 78256, 934245, 645745, 50636, 3023301, 39559105, 2642046, 415078073, 488260055, 7792505023, 6422503480

Basic calculations (n = 20131218)

Multiplication

n×y
n×2 40262436
n×3 60393654
n×4 80524872
n×5 100656090

Division

n÷y
n÷2 10065609
n÷3 6710406
n÷3 5032804.5
n÷5 4026243.6

Exponentiation

ny
n2 405265938163524
n3 8.1584969491444E+21
n4 1.6424048063556E+29
n5 3.3063609200993E+36

Nth Root

y√n
2√n 4486.7825888937
3√n 272.03410219771
4√n 66.983450111903
5√n 28.891760784181

Divisors of 20131218

1, 2, 9, 18, 307, 614, 2763, 3643, 5526, 7286, 32787, 65574, 1118401, 2236802, 10065609, 20131218

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 -20131217
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 20131218 can be divided by 16 positive divisors. The sum of these divisors (counting 20131218) is 1, the average is 0.0625.

Base conversion 20131218

Base System Value
2 Binary 1001100110010110110010010
3 Ternary 1101212202211200
4 Quaternary 1030302312102
5 Quinary 20123144333
6 Senary 1555252030
8 Octal 114626622
10 Decimal 20131218
12 Duodecimal 68aa016
16 Hexadecimal 1332d92
20 Vigesimal 65g80i
36 Base36 bzhci

Cryptographic Hash Functions

md5 36719022342459b0cfc9db3f4bd4ead1
sha1 027181282838e40d68840413272fa121b4ab5124
sha256 f6d547c34fffba15fb4c85b91086f849ce2db992229784bc5b1f7b3d29b22f36
sha512 76b5cb58cec115441ba58b734fb64ef2a5afc80f7c9898d201628d6b060a4c3a503bd45da3cbadf5159a4175905f434fdd802d9db54dcde27d2771ccbf446074
ripemd-160 a89216e68c9930675b10cb34a0ef0da8703e9002

20131218 as geometric shapes

Circle

Radius = n
Diameter 40262436
Circumference 126488173.15323
Area 1.2731804940847E+15

Sphere

Radius = n
Volume 3.4174232106356E+22
Surface area 5.0927219763388E+15
Circumference 126488173.15323

Square

Length = n
Perimeter 80524872
Area 405265938163524
Diagonal 28469841.522689

Cube

Length = n
Surface area 2431595628981144
Volume 8.1584969491444E+21
Space diagonal 34868292.394245

Equilateral Triangle

Length = n
Perimeter 60393654
Area 1.7548529886907E+14
Altitude 17434146.197123

Triangular Pyramid

Length = n
Surface area 1.7548529886907E+14
Volume 9.6148808617163E+20
Height 9489947.1742298