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

20501981 (number)

20501981 is an odd 8-digits prime number following 20501980 and preceding 20501982. In scientific notation, it is written as 2.0501981 × 10^7. The sum of its digits is 26. It has a total of 1 prime factors and 2 positive divisors. There are 20501980 positive integers (up to 20501981) that are relatively prime to 20501981.

Interesting facts

20501981 has 2 divisors, whose sum is 20501982
The reverse of 20501981 is 18910502
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8

Name

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

Notation

Scientific notation	2.0501981 × 10^7
Engineering notation	2.0501981 × 10^6

Prime Factorization of 20501981

Prime Factorization 20501981

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	20501981	Product of the distinct prime numbers

The prime factorization of 20501981 is 20501981. Since it has a total of 1 prime factors.

Most popular turbo-numbers

3, 7, 69, 62, 625, 139, 7106, 5638, 33565, 93129, 538084, 663302, 3378244, 4229634, 78235246, 63174893, 980247007, 663769922, 614511887, 9425808536

Basic calculations (n = 20501981)

Multiplication

n×y

n×2	41003962
n×3	61505943
n×4	82007924
n×5	102509905

Division

n÷y

n÷2	10250990.5
n÷3	6833993.6666667
n÷3	5125495.25
n÷5	4100396.2

Exponentiation

n^y

n²	420331224924361
n³	8.617622787106E+21
n⁴	1.7667833864641E+29
n⁵	3.6222559420403E+36

Nth Root

^y√n

²√n	4527.9113286371
³√n	273.693999234
⁴√n	67.289756491141
⁵√n	28.997407073118

Divisors of 20501981

1, 20501981

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	20501982	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	10250991	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4527.9114390633	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999024485	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20501981 can be divided by 2 positive divisors. The sum of these divisors (counting 20501981) is 20501982, the average is 10250991.

Base conversion 20501981

Base	System	Value
2	Binary	1001110001101010111011101
3	Ternary	1102120121102122
4	Quaternary	1032031113131
5	Quinary	20222030411
6	Senary	2011232325
8	Octal	116152735
10	Decimal	20501981
12	Duodecimal	6a486a5
16	Hexadecimal	138d5dd
20	Vigesimal	682ej1
36	Base36	c7ffh

Cryptographic Hash Functions

md5	5c21bd9fd525d62383b5508f1f357376
sha1	e822c2139b238b1a3214e3d082166bcff11cc715
sha256	acc5cce5254cca20f5a21599da0951f4cd14d65e133fa79e8fbaf685f2984f48
sha512	b6e3582b67b10b505c56b754dd61a228b218a86b00ab3c9c407d3011e84c6adacccc1d78957706fecfadceb73809a3e0f04d8fa70833199c1c5e78a65b26e0ca
ripemd-160	024a4892887acde8168a3a92feeb8803c24e5454

20501981 as geometric shapes

Circle

Radius = n

Diameter	41003962
Circumference	128817745.78728
Area	1.3205094882968E+15

Sphere

Radius = n

Volume	3.6097413919174E+22
Surface area	5.2820379531871E+15
Circumference	128817745.78728

Square

Length = n

Perimeter	82007924
Area	420331224924361
Diagonal	28994179.585716

Cube

Length = n

Surface area	2521987349546166
Volume	8.617622787106E+21
Space diagonal	35510472.747812

Equilateral Triangle

Length = n

Perimeter	61505943
Area	1.8200875939416E+14
Altitude	17755236.373906

Triangular Pyramid

Length = n

Surface area	1.8200875939416E+14
Volume	1.0155965850784E+21
Height	9664726.5285718