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

20181438 (number)

20181438 is an even 8-digits composite number following 20181437 and preceding 20181439. In scientific notation, it is written as 2.0181438 × 10^7. The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors. There are 6727140 positive integers (up to 20181438) that are relatively prime to 20181438.

Interesting facts

20181438 has 8 divisors, whose sum is 33635760
The reverse of 20181438 is 83418102
Previous prime number is 9

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9

Name

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

Notation

Scientific notation	2.0181438 × 10^7
Engineering notation	2.0181438 × 10^6

Prime Factorization of 20181438

Prime Factorization 2 × 9 × 1121191

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20181438	Product of the distinct prime numbers

The prime factorization of 20181438 is 2 × 9 × 1121191. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 6, 37, 93, 563, 145, 9677, 1146, 67329, 46873, 540187, 265337, 4735926, 3224786, 35327521, 46350420, 652380241, 205470002, 727122642, 6355423391

Basic calculations (n = 20181438)

Multiplication

n×y

n×2	40362876
n×3	60544314
n×4	80725752
n×5	100907190

Division

n÷y

n÷2	10090719
n÷3	6727146
n÷3	5045359.5
n÷5	4036287.6

Exponentiation

n^y

n²	407290439747844
n³	8.2197067577638E+21
n⁴	1.6588550230999E+29
n⁵	3.347807979968E+36

Nth Root

^y√n

²√n	4492.375540847
³√n	272.26012276841
⁴√n	67.025185869544
⁵√n	28.906161289511

Divisors of 20181438

1, 2, 9, 18, 1121191, 2242382, 10090719, 20181438

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	-20181437	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 20181438 can be divided by 8 positive divisors. The sum of these divisors (counting 20181438) is 1, the average is 0.125.

Base conversion 20181438

Base	System	Value
2	Binary	1001100111111000110111110
3	Ternary	1101222022201200
4	Quaternary	1030333012332
5	Quinary	20131301223
6	Senary	2000320330
8	Octal	114770676
10	Decimal	20181438
12	Duodecimal	69130a6
16	Hexadecimal	133f1be
20	Vigesimal	662dbi
36	Base36	c0k3i

Cryptographic Hash Functions

md5	5a479c77594a475aa0b131c35c00dfaf
sha1	71a42fb686b0aa266d6e184d2f8725e19db46931
sha256	bd6045d7b1a50632096c6b041f58c6f3f2aba13441fa3ac58863290068dea1d8
sha512	e29377bf2f23ccdc160e52744a1e5c053d653323b8d4f0e8fec5ce6c8cb888445c2a9e50e928e7a77354a8b5c1633fc663eab6d01b373b1753bbb5ca315e4360
ripemd-160	6c4cfc5db2744cffb5b19eeafcc3c5017348e2d6

20181438 as geometric shapes

Circle

Radius = n

Diameter	40362876
Circumference	126803714.71936
Area	1.2795406533892E+15

Sphere

Radius = n

Volume	3.4430627153138E+22
Surface area	5.1181626135567E+15
Circumference	126803714.71936

Square

Length = n

Perimeter	80725752
Area	407290439747844
Diagonal	28540863.327792

Cube

Length = n

Surface area	2443742638487064
Volume	8.2197067577638E+21
Space diagonal	34955275.985801

Equilateral Triangle

Length = n

Perimeter	60544314
Area	1.7636193377008E+14
Altitude	17477637.992901

Triangular Pyramid

Length = n

Surface area	1.7636193377008E+14
Volume	9.6870173129662E+20
Height	9513621.1092639