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

20201981 (number)

20201981 is an odd 8-digits composite number following 20201980 and preceding 20201982. In scientific notation, it is written as 2.0201981 × 10^7. The sum of its digits is 23. It has a total of 3 prime factors and 6 positive divisors. There are 19323128 positive integers (up to 20201981) that are relatively prime to 20201981.

Interesting facts

20201981 has 6 divisors, whose sum is 21119070
The reverse of 20201981 is 18910202
Previous prime number is 23

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5

Name

Name	twenty million two hundred one thousand nine hundred eighty-one

Notation

Scientific notation	2.0201981 × 10^7
Engineering notation	2.0201981 × 10^6

Prime Factorization of 20201981

Prime Factorization 23 × 23 × 38189

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	878347	Product of the distinct prime numbers

The prime factorization of 20201981 is 23 × 23 × 38189. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 1, 37, 59, 326, 976, 1806, 3557, 25784, 70865, 671539, 178597, 6448633, 3658472, 57578514, 16581523, 833869415, 760133251, 250983400, 644099979

Basic calculations (n = 20201981)

Multiplication

n×y

n×2	40403962
n×3	60605943
n×4	80807924
n×5	101009905

Division

n÷y

n÷2	10100990.5
n÷3	6733993.6666667
n÷3	5050495.25
n÷5	4040396.2

Exponentiation

n^y

n²	408120036324361
n³	8.2448332195441E+21
n⁴	1.665619640494E+29
n⁵	3.3648816330486E+36

Nth Root

^y√n

²√n	4494.6613888034
³√n	272.3524707142
⁴√n	67.042235857729
⁵√n	28.912043701218

Divisors of 20201981

1, 23, 529, 38189, 878347, 20201981

6 divisors

τ	Total Divisors	6	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-20201980	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.16666666666667	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	6	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20201981 can be divided by 6 positive divisors. The sum of these divisors (counting 20201981) is 1, the average is 0.16666666666667.

Base conversion 20201981

Base	System	Value
2	Binary	1001101000100000111111101
3	Ternary	1102000100220112
4	Quaternary	1031010013331
5	Quinary	20132430411
6	Senary	2000555405
8	Octal	115040775
10	Decimal	20201981
12	Duodecimal	6922b65
16	Hexadecimal	13441fd
20	Vigesimal	6654j1
36	Base36	c0zy5

Cryptographic Hash Functions

md5	720391957e8ad34116381acab66e46fd
sha1	729c80ca989143e543043d26c568b24bfe112301
sha256	ffc1ccdce54f243f3b1448526c41e2654e2447a99d738882831aabc142e0bcd3
sha512	93ee3e40574a001cec68f0d663fedd285d0a0025bf5626c07056cde706ab387db8248efdbf5b2557e020dac34bf207e89fabfdc3523cd50641be83d1ebab2b07
ripemd-160	9e310a04bf6dcf63d4138f92138043af836c39c2

20201981 as geometric shapes

Circle

Radius = n

Diameter	40403962
Circumference	126932790.19512
Area	1.2821469078994E+15

Sphere

Radius = n

Volume	3.4535876630124E+22
Surface area	5.1285876315976E+15
Circumference	126932790.19512

Square

Length = n

Perimeter	80807924
Area	408120036324361
Diagonal	28569915.517004

Cube

Length = n

Surface area	2448720217946166
Volume	8.2448332195441E+21
Space diagonal	34990857.505541

Equilateral Triangle

Length = n

Perimeter	60605943
Area	1.7672115962516E+14
Altitude	17495428.752771

Triangular Pyramid

Length = n

Surface area	1.7672115962516E+14
Volume	9.7166291321529E+20
Height	9523305.1723345