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

20181638 (number)

20181638 is an even 8-digits composite number following 20181637 and preceding 20181639. In scientific notation, it is written as 2.0181638 × 10^7. The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors. There are 10048360 positive integers (up to 20181638) that are relatively prime to 20181638.

Interesting facts

20181638 has 8 divisors, whose sum is 30399840
The reverse of 20181638 is 83618102
Previous prime number is 239

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2

Name

Name	twenty million one hundred eighty-one thousand six hundred thirty-eight

Notation

Scientific notation	2.0181638 × 10^7
Engineering notation	2.0181638 × 10^6

Prime Factorization of 20181638

Prime Factorization 2 × 239 × 42221

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20181638	Product of the distinct prime numbers

The prime factorization of 20181638 is 2 × 239 × 42221. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 10, 78, 92, 120, 364, 7468, 4750, 46653, 49945, 999931, 2143, 3896731, 2166930, 29027963, 47051226, 167641382, 967211384, 6309174521, 6926653048

Basic calculations (n = 20181638)

Multiplication

n×y

n×2	40363276
n×3	60544914
n×4	80726552
n×5	100908190

Division

n÷y

n÷2	10090819
n÷3	6727212.6666667
n÷3	5045409.5
n÷5	4036327.6

Exponentiation

n^y

n²	407298512363044
n³	8.2199511344495E+21
n⁴	1.6589207817315E+29
n⁵	3.3479738687582E+36

Nth Root

^y√n

²√n	4492.3978007296
³√n	272.26102214014
⁴√n	67.025351925444
⁵√n	28.906218581854

Divisors of 20181638

1, 2, 239, 478, 42221, 84442, 10090819, 20181638

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	-20181637	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 20181638 can be divided by 8 positive divisors. The sum of these divisors (counting 20181638) is 1, the average is 0.125.

Base conversion 20181638

Base	System	Value
2	Binary	1001100111111001010000110
3	Ternary	1101222100000002
4	Quaternary	1030333022012
5	Quinary	20131303023
6	Senary	2000321302
8	Octal	114771206
10	Decimal	20181638
12	Duodecimal	6913232
16	Hexadecimal	133f286
20	Vigesimal	662e1i
36	Base36	c0k92

Cryptographic Hash Functions

md5	4578d76d35e7d378b9a293feef2ab8c3
sha1	dd17ee38914739ec9cc2ca5fa9a3ad5460ed14d9
sha256	28e6fad480f4855cbf63df1c896534b35d5354f057aeca5ce2440081fb91c4c3
sha512	1b7ee36903756c41f6b38a13df1fa6c607d919fe815c45cff03e54e66244fdd2f7e3cfcd6840e6019d6148726365337d14850dab0e113a145bce32ea0cb4ef4a
ripemd-160	53f705f999859d6d8488d8834bad3427be491d3d

20181638 as geometric shapes

Circle

Radius = n

Diameter	40363276
Circumference	126804971.35642
Area	1.2795660142578E+15

Sphere

Radius = n

Volume	3.4431650795805E+22
Surface area	5.1182640570312E+15
Circumference	126804971.35642

Square

Length = n

Perimeter	80726552
Area	407298512363044
Diagonal	28541146.170504

Cube

Length = n

Surface area	2443791074178264
Volume	8.2199511344495E+21
Space diagonal	34955622.395963

Equilateral Triangle

Length = n

Perimeter	60544914
Area	1.76365429315E+14
Altitude	17477811.197981

Triangular Pyramid

Length = n

Surface area	1.76365429315E+14
Volume	9.6873053136521E+20
Height	9513715.3901681