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

20197981 (number)

20197981 is an odd 8-digits prime number following 20197980 and preceding 20197982. In scientific notation, it is written as 2.0197981 × 10^7. The sum of its digits is 37. It has a total of 1 prime factors and 2 positive divisors. There are 20197980 positive integers (up to 20197981) that are relatively prime to 20197981.

Interesting facts

20197981 has 2 divisors, whose sum is 20197982
The reverse of 20197981 is 18979102
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1

Name

Name	twenty million one hundred ninety-seven thousand nine hundred eighty-one

Notation

Scientific notation	2.0197981 × 10^7
Engineering notation	2.0197981 × 10^6

Prime Factorization of 20197981

Prime Factorization 20197981

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	20197981	Product of the distinct prime numbers

The prime factorization of 20197981 is 20197981. Since it has a total of 1 prime factors.

Most popular turbo-numbers

7, 10, 54, 76, 945, 399, 9841, 5822, 84292, 65244, 821333, 585498, 6327962, 4922083, 17446604, 32127401, 322170273, 449208756, 6036630239, 8710701319

Basic calculations (n = 20197981)

Multiplication

n×y

n×2	40395962
n×3	60593943
n×4	80791924
n×5	100989905

Division

n÷y

n÷2	10098990.5
n÷3	6732660.3333333
n÷3	5049495.25
n÷5	4039596.2

Exponentiation

n^y

n²	407958436476361
n³	8.2399367487392E+21
n⁴	1.6643008589224E+29
n⁵	3.3615517126798E+36

Nth Root

^y√n

²√n	4494.2163944341
³√n	272.33449422975
⁴√n	67.03891701418
⁵√n	28.910898691377

Divisors of 20197981

1, 20197981

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	20197982	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	10098991	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4494.2165056882	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999009802	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20197981 can be divided by 2 positive divisors. The sum of these divisors (counting 20197981) is 20197982, the average is 10098991.

Base conversion 20197981

Base	System	Value
2	Binary	1001101000011001001011101
3	Ternary	1102000011102101
4	Quaternary	1031003021131
5	Quinary	20132313411
6	Senary	2000525101
8	Octal	115031135
10	Decimal	20197981
12	Duodecimal	6920791
16	Hexadecimal	134325d
20	Vigesimal	664ej1
36	Base36	c0wv1

Cryptographic Hash Functions

md5	277f9a7998f947009031ab6caa055682
sha1	37b1b5be38d5914c7c20e6efc63f1a47ef2c1015
sha256	0567b3fdb4830ce42808ca1332087e90c0c75d2f753b66bd476a89bf128b8d7a
sha512	8e5f62fea1c1a92e9c90410db0bb901edf70b4bed8f08f328500164f3ac8415cdd645acea328929856fba1eb6dc2bf4cb865edf955bba4caf1b2afae3f1643bc
ripemd-160	9c3d26786e6991735c8fee0dbc37f061eb7f9397

20197981 as geometric shapes

Circle

Radius = n

Diameter	40395962
Circumference	126907657.45389
Area	1.2816392270041E+15

Sphere

Radius = n

Volume	3.4515366341178E+22
Surface area	5.1265569080165E+15
Circumference	126907657.45389

Square

Length = n

Perimeter	80791924
Area	407958436476361
Diagonal	28564258.662754

Cube

Length = n

Surface area	2447750618858166
Volume	8.2399367487392E+21
Space diagonal	34983929.302311

Equilateral Triangle

Length = n

Perimeter	60593943
Area	1.7665118483835E+14
Altitude	17491964.651155

Triangular Pyramid

Length = n

Surface area	1.7665118483835E+14
Volume	9.7108585859696E+20
Height	9521419.5542514