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

20189981 (number)

20189981 is an odd 8-digits composite number following 20189980 and preceding 20189982. In scientific notation, it is written as 2.0189981 × 10^7. The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors. There are 17047008 positive integers (up to 20189981) that are relatively prime to 20189981.

Interesting facts

20189981 has 8 divisors, whose sum is 23419200
The reverse of 20189981 is 18998102
Previous prime number is 67

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2

Name

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

Notation

Scientific notation	2.0189981 × 10^7
Engineering notation	2.0189981 × 10^6

Prime Factorization of 20189981

Prime Factorization 7 × 67 × 43049

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20189981	Product of the distinct prime numbers

The prime factorization of 20189981 is 7 × 67 × 43049. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 5, 44, 91, 910, 283, 7844, 3586, 7665, 93858, 108186, 173218, 758326, 9887832, 42713447, 48489390, 431103964, 470943722, 9887665268, 6429858773

Basic calculations (n = 20189981)

Multiplication

n×y

n×2	40379962
n×3	60569943
n×4	80759924
n×5	100949905

Division

n÷y

n÷2	10094990.5
n÷3	6729993.6666667
n÷3	5047495.25
n÷5	4037996.2

Exponentiation

n^y

n²	407635332780361
n³	8.2301496237642E+21
n⁴	1.6616656453096E+29
n⁵	3.3548997807153E+36

Nth Root

^y√n

²√n	4493.326273486
³√n	272.29853413948
⁴√n	67.03227784796
⁵√n	28.90860812737

Divisors of 20189981

1, 7, 67, 469, 43049, 301343, 2884283, 20189981

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-20189980	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20189981 can be divided by 8 positive divisors. The sum of these divisors (counting 20189981) is 1, the average is 0.125.

Base conversion 20189981

Base	System	Value
2	Binary	1001101000001001100011101
3	Ternary	1101222202110002
4	Quaternary	1031001030131
5	Quinary	20132034411
6	Senary	2000424045
8	Octal	115011435
10	Decimal	20189981
12	Duodecimal	6918025
16	Hexadecimal	134131d
20	Vigesimal	663ej1
36	Base36	c0qot

Cryptographic Hash Functions

md5	76cad005b99c048ab07ea2b9dc29189f
sha1	9677b448f35b443f21681dea255d66e91e2e7dce
sha256	a73d44450d9022248f520263070e4e506aec90c2099f4ec432a029066215db5d
sha512	5a8b3012a3b604ecd3758395bbc5f4a63d41551183bce034aa76690462bfcfe70a25b779a07f8867c3feb24b63f9d9b7cba195ae3e06a70bcf6459f9b3893e9e
ripemd-160	f4be67216c32fbd7401cbbdb3ddc6a378f1a6055

20189981 as geometric shapes

Circle

Radius = n

Diameter	40379962
Circumference	126857391.97144
Area	1.2806241668064E+15

Sphere

Radius = n

Volume	3.447437012795E+22
Surface area	5.1224966672257E+15
Circumference	126857391.97144

Square

Length = n

Perimeter	80759924
Area	407635332780361
Diagonal	28552944.954255

Cube

Length = n

Surface area	2445811996682166
Volume	8.2301496237642E+21
Space diagonal	34970072.89585

Equilateral Triangle

Length = n

Perimeter	60569943
Area	1.7651127683396E+14
Altitude	17485036.447925

Triangular Pyramid

Length = n

Surface area	1.7651127683396E+14
Volume	9.6993243485726E+20
Height	9517648.318085