20131231 (number)

20131231 is an odd 8-digits composite number following 20131230 and preceding 20131232. In scientific notation, it is written as 2.0131231 × 10^7. The sum of its digits is 13. It has a total of 2 prime factors and 4 positive divisors. There are 19986264 positive integers (up to 20131231) that are relatively prime to 20131231.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0131231 × 10^7
Engineering notation 2.0131231 × 10^6

Prime Factorization of 20131231

Prime Factorization 139 × 144829

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20131231
Product of the distinct prime numbers

The prime factorization of 20131231 is 139 × 144829. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 8, 6, 54, 689, 173, 8017, 8408, 43052, 19464, 279015, 977969, 312067, 8405947, 40906567, 99326453, 493405953, 836893592, 3548779838, 5959205800

Basic calculations (n = 20131231)

Multiplication

n×y
n×2 40262462
n×3 60393693
n×4 80524924
n×5 100656155

Division

n÷y
n÷2 10065615.5
n÷3 6710410.3333333
n÷3 5032807.75
n÷5 4026246.2

Exponentiation

ny
n2 405266461575361
n3 8.1585127545262E+21
n4 1.6424090487781E+29
n5 3.3063715957443E+36

Nth Root

y√n
2√n 4486.7840375931
3√n 272.03416075423
4√n 66.983460925762
5√n 28.891764515627

Divisors of 20131231

1, 139, 144829, 20131231

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20131230
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20131231 can be divided by 4 positive divisors. The sum of these divisors (counting 20131231) is 1, the average is 0.25.

Base conversion 20131231

Base System Value
2 Binary 1001100110010110110011111
3 Ternary 1101212202212011
4 Quaternary 1030302312133
5 Quinary 20123144411
6 Senary 1555252051
8 Octal 114626637
10 Decimal 20131231
12 Duodecimal 68aa027
16 Hexadecimal 1332d9f
20 Vigesimal 65g81b
36 Base36 bzhcv

Cryptographic Hash Functions

md5 4e2f9a8bb61c4d2a60e8ab868c6240de
sha1 35568ccad9b14388c9827ce5b98331f090117cdb
sha256 e4bbafd22f555866fd553be58d20ea973706f508a92b2a91604bbadd59da6499
sha512 369b0eef18e8af3da938813a5dbe7019382f4ffe531f3666be3baf47fb07eff84c601eba961f4434d7855414db2e71be8fee60f6af7943949b84c35bed06efd6
ripemd-160 163f1deca82d8f7c6c51f8b17687f12c5d5b2b6b

20131231 as geometric shapes

Circle

Radius = n
Diameter 40262462
Circumference 126488254.83464
Area 1.2731821384315E+15

Sphere

Radius = n
Volume 3.4174298311784E+22
Surface area 5.0927285537259E+15
Circumference 126488254.83464

Square

Length = n
Perimeter 80524924
Area 405266461575361
Diagonal 28469859.907466

Cube

Length = n
Surface area 2431598769452166
Volume 8.1585127545262E+21
Space diagonal 34868314.910906

Equilateral Triangle

Length = n
Perimeter 60393693
Area 1.7548552551305E+14
Altitude 17434157.455453

Triangular Pyramid

Length = n
Surface area 1.7548552551305E+14
Volume 9.6148994885374E+20
Height 9489953.3024886