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

20181997 (number)

20181997 is an odd 8-digits composite number following 20181996 and preceding 20181998. In scientific notation, it is written as 2.0181997 × 10^7. The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors. There are 18347260 positive integers (up to 20181997) that are relatively prime to 20181997.

Interesting facts

20181997 has 4 divisors, whose sum is 22016736
The reverse of 20181997 is 79918102
Previous prime number is 11

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1

Name

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

Notation

Scientific notation	2.0181997 × 10^7
Engineering notation	2.0181997 × 10^6

Prime Factorization of 20181997

Prime Factorization 11 × 1834727

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20181997	Product of the distinct prime numbers

The prime factorization of 20181997 is 11 × 1834727. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 3, 57, 39, 589, 242, 1043, 3470, 52649, 48725, 753792, 72250, 259270, 4280292, 45548041, 64596170, 629657358, 104691108, 346879037, 1907757479

Basic calculations (n = 20181997)

Multiplication

n×y

n×2	40363994
n×3	60545991
n×4	80727988
n×5	100909985

Division

n÷y

n÷2	10090998.5
n÷3	6727332.3333333
n÷3	5045499.25
n÷5	4036399.4

Exponentiation

n^y

n²	407313002908009
n³	8.2203898027504E+21
n⁴	1.6590388233794E+29
n⁵	3.3482716556327E+36

Nth Root

^y√n

²√n	4492.4377569422
³√n	272.2626364975
⁴√n	67.025649992687
⁵√n	28.90632142047

Divisors of 20181997

1, 11, 1834727, 20181997

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	-20181996	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 20181997 can be divided by 4 positive divisors. The sum of these divisors (counting 20181997) is 1, the average is 0.25.

Base conversion 20181997

Base	System	Value
2	Binary	1001100111111001111101101
3	Ternary	1101222100111101
4	Quaternary	1030333033231
5	Quinary	20131310442
6	Senary	2000323101
8	Octal	114771755
10	Decimal	20181997
12	Duodecimal	6913491
16	Hexadecimal	133f3ed
20	Vigesimal	662ejh
36	Base36	c0kj1

Cryptographic Hash Functions

md5	d358aa884a205eb30f0bfd63995fba3d
sha1	ce53a04f483a329b1d3d62567abadfafd4a3d3db
sha256	39279623ebfdffc4868acec829f21af89b1194ebaec066cdaeda90787946db43
sha512	fa85736d6a83d54f8e3062413ae5a3830b6bf62c1d228f96fe96ce29bf7d6dee71ad0511a5bc58378027290f264cdcbef10db6adfc1cd76a70e6a18aa7405d7c
ripemd-160	a7972b8b380eee2ab8babcd036e5d504834b754f

20181997 as geometric shapes

Circle

Radius = n

Diameter	40363994
Circumference	126807227.01994
Area	1.2796115376474E+15

Sphere

Radius = n

Volume	3.4433488285287E+22
Surface area	5.1184461505896E+15
Circumference	126807227.01994

Square

Length = n

Perimeter	80727988
Area	407313002908009
Diagonal	28541653.873173

Cube

Length = n

Surface area	2443878017448054
Volume	8.2203898027504E+21
Space diagonal	34956244.202203

Equilateral Triangle

Length = n

Perimeter	60545991
Area	1.7637170390503E+14
Altitude	17478122.101101

Triangular Pyramid

Length = n

Surface area	1.7637170390503E+14
Volume	9.6878222892026E+20
Height	9513884.624391