Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

20731985 (number)

20731985 is an odd 8-digits composite number following 20731984 and preceding 20731986. In scientific notation, it is written as 2.0731985 × 10^7. The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors. There are 16585584 positive integers (up to 20731985) that are relatively prime to 20731985.

Interesting facts

20731985 has 4 divisors, whose sum is 24878388
The reverse of 20731985 is 58913702
Previous prime number is 5

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8

Name

Name	twenty million seven hundred thirty-one thousand nine hundred eighty-five

Notation

Scientific notation	2.0731985 × 10^7
Engineering notation	2.0731985 × 10^6

Prime Factorization of 20731985

Prime Factorization 5 × 4146397

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20731985	Product of the distinct prime numbers

The prime factorization of 20731985 is 5 × 4146397. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 4, 4, 61, 898, 598, 6751, 6784, 49337, 10219, 313816, 713439, 2162788, 928105, 52725780, 85119835, 47414655, 283429648, 454061826, 1267880725

Basic calculations (n = 20731985)

Multiplication

n×y

n×2	41463970
n×3	62195955
n×4	82927940
n×5	103659925

Division

n÷y

n÷2	10365992.5
n÷3	6910661.6666667
n÷3	5182996.25
n÷5	4146397

Exponentiation

n^y

n²	429815202040225
n³	8.9109223214699E+21
n⁴	1.8474110790488E+29
n⁵	3.8300498779673E+36

Nth Root

^y√n

²√n	4553.2389570502
³√n	274.71368547997
⁴√n	67.477692291973
⁵√n	29.062179256595

Divisors of 20731985

1, 5, 4146397, 20731985

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	-20731984	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 20731985 can be divided by 4 positive divisors. The sum of these divisors (counting 20731985) is 1, the average is 0.25.

Base conversion 20731985

Base	System	Value
2	Binary	1001111000101100001010001
3	Ternary	1110000021221022
4	Quaternary	1033011201101
5	Quinary	20301410420
6	Senary	2020205225
8	Octal	117054121
10	Decimal	20731985
12	Duodecimal	6b39815
16	Hexadecimal	13c5851
20	Vigesimal	69b9j5
36	Base36	cccwh

Cryptographic Hash Functions

md5	386d9495fb0dfe4dee4828ea019f691d
sha1	b5167753c564f751d910d4892cac854a0272519d
sha256	db3727e27b0658314e7a7bebfdd4c98aafe33c1381a09c9202b88232d4c4033a
sha512	48bcc00c4e9f8a0f265b78b4c5b177960e9cf686e790a8cd75b8ad47d4867620159bdd04834bd0503499461399a01f7d5f6904ef52fc2534731045ba56bad8b3
ripemd-160	a0894d0a890b924c65a756660b6307d06f9a2b26

20731985 as geometric shapes

Circle

Radius = n

Diameter	41463970
Circumference	130262903.54067
Area	1.3503042811308E+15

Sphere

Radius = n

Volume	3.7325984135786E+22
Surface area	5.4012171245231E+15
Circumference	130262903.54067

Square

Length = n

Perimeter	82927940
Area	429815202040225
Diagonal	29319454.361916

Cube

Length = n

Surface area	2578891212241350
Volume	8.9109223214699E+21
Space diagonal	35908851.361756

Equilateral Triangle

Length = n

Perimeter	62195955
Area	1.8611544194979E+14
Altitude	17954425.680878

Triangular Pyramid

Length = n

Surface area	1.8611544194979E+14
Volume	1.0501622666897E+21
Height	9773151.4539719