20121831 (number)

20121831 is an odd 8-digits composite number following 20121830 and preceding 20121832. In scientific notation, it is written as 2.0121831 × 10^7. The sum of its digits is 18. It has a total of 4 prime factors and 16 positive divisors. There are 13366080 positive integers (up to 20121831) that are relatively prime to 20121831.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0121831 × 10^7
Engineering notation 2.0121831 × 10^6

Prime Factorization of 20121831

Prime Factorization 9 × 3 × 313 × 2381

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20121831
Product of the distinct prime numbers

The prime factorization of 20121831 is 9 × 3 × 313 × 2381. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 3, 14, 1, 412, 806, 1535, 8067, 17947, 11052, 122545, 133142, 8381145, 3073155, 95726210, 4198797, 639013678, 701044741, 9932399651, 8698369998

Basic calculations (n = 20121831)

Multiplication

n×y
n×2 40243662
n×3 60365493
n×4 80487324
n×5 100609155

Division

n÷y
n÷2 10060915.5
n÷3 6707277
n÷3 5030457.75
n÷5 4024366.2

Exponentiation

ny
n2 404888082792561
n3 8.1470895758659E+21
n4 1.6393435958744E+29
n5 3.2986594787116E+36

Nth Root

y√n
2√n 4485.736394395
3√n 271.99181329887
4√n 66.975640305973
5√n 28.889065889543

Divisors of 20121831

1, 3, 9, 27, 313, 939, 2381, 2817, 7143, 8451, 21429, 64287, 745253, 2235759, 6707277, 20121831

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 -20121830
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 20121831 can be divided by 16 positive divisors. The sum of these divisors (counting 20121831) is 1, the average is 0.0625.

Base conversion 20121831

Base System Value
2 Binary 1001100110000100011100111
3 Ternary 1101212021222000
4 Quaternary 1030300203213
5 Quinary 20122344311
6 Senary 1555140343
8 Octal 114604347
10 Decimal 20121831
12 Duodecimal 68a46b3
16 Hexadecimal 13308e7
20 Vigesimal 65f4bb
36 Base36 bza3r

Cryptographic Hash Functions

md5 ef97cf6bcd7b65fcfaa86863ca154206
sha1 35ef87c214be5776baf876488fcee4c27abe80c3
sha256 d77ddc3e22ded44e743f826842d238187b805388fbc53177d28bb50d2196e005
sha512 6745004d5bde080ff87bd1b5ced99bbb933050eea13470115d559a2596d3f6d71c7d5f5b2b1178cd41b4a0c7ed7f18c13e86a92bda697a9860b4e61fa9e0fd4c
ripemd-160 0789bec6e143078bcaac53be1f19ef8639862a0f

20121831 as geometric shapes

Circle

Radius = n
Diameter 40243662
Circumference 126429192.89275
Area 1.2719934264272E+15

Sphere

Radius = n
Volume 3.4126449012904E+22
Surface area 5.0879737057087E+15
Circumference 126429192.89275

Square

Length = n
Perimeter 80487324
Area 404888082792561
Diagonal 28456566.299979

Cube

Length = n
Surface area 2429328496755366
Volume 8.1470895758659E+21
Space diagonal 34852033.633314

Equilateral Triangle

Length = n
Perimeter 60365493
Area 1.7532168269397E+14
Altitude 17426016.816657

Triangular Pyramid

Length = n
Surface area 1.7532168269397E+14
Volume 9.6014371433817E+20
Height 9485522.0999931