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

18081938 (number)

18081938 is an even 8-digits composite number following 18081937 and preceding 18081939. In scientific notation, it is written as 1.8081938 × 10^7. The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors. There are 7749396 positive integers (up to 18081938) that are relatively prime to 18081938.

Interesting facts

18081938 has 8 divisors, whose sum is 30997632
The reverse of 18081938 is 83918081
Previous prime number is 7

Basic properties

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

Name

Name	eighteen million eighty-one thousand nine hundred thirty-eight

Notation

Scientific notation	1.8081938 × 10^7
Engineering notation	1.8081938 × 10^6

Prime Factorization of 18081938

Prime Factorization 2 × 7 × 1291567

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	18081938	Product of the distinct prime numbers

The prime factorization of 18081938 is 2 × 7 × 1291567. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 5, 71, 48, 197, 836, 6862, 8896, 69160, 10957, 999489, 465187, 7332113, 1035875, 4268004, 16746188, 41186094, 691169457, 3286374656, 4989369532

Basic calculations (n = 18081938)

Multiplication

n×y

n×2	36163876
n×3	54245814
n×4	72327752
n×5	90409690

Division

n÷y

n÷2	9040969
n÷3	6027312.6666667
n÷3	4520484.5
n÷5	3616387.6

Exponentiation

n^y

n²	326956481835844
n³	5.9120068332539E+21
n⁴	1.0690054101447E+29
n⁵	1.9329689547902E+36

Nth Root

^y√n

²√n	4252.2862086177
³√n	262.47120107338
⁴√n	65.209556114251
⁵√n	28.278019860218

Divisors of 18081938

1, 2, 7, 14, 1291567, 2583134, 9040969, 18081938

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	-18081937	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 18081938 can be divided by 8 positive divisors. The sum of these divisors (counting 18081938) is 1, the average is 0.125.

Base conversion 18081938

Base	System	Value
2	Binary	1000100111110100010010010
3	Ternary	1021000122202102
4	Quaternary	1010332202102
5	Quinary	14112110223
6	Senary	1443320402
8	Octal	104764222
10	Decimal	18081938
12	Duodecimal	6080102
16	Hexadecimal	113e892
20	Vigesimal	5d04gi
36	Base36	ark42

Cryptographic Hash Functions

md5	2bfbb7fb5c140f1276e22b266b33a09c
sha1	4787b6a69a8485d8173c40e047fd595f24270f8b
sha256	f4675129ed3a7fb0290076c72d312ea94914e89acfa67795aad2a0aff72d09ed
sha512	bd61747f789b9b270d3350a90fe3865c6bae09018b1be49f08ea0b4cb748a372e632dc9d849659d2228c19441bebd0047cfa31ec37d88e8ffe7bce1d533749df
ripemd-160	10471e38878fc691f5202d6571f6cbbab727a510

18081938 as geometric shapes

Circle

Radius = n

Diameter	36163876
Circumference	113612167.16693
Area	1.0271640813791E+15

Sphere

Radius = n

Volume	2.4764156313764E+22
Surface area	4.1086563255162E+15
Circumference	113612167.16693

Square

Length = n

Perimeter	72327752
Area	326956481835844
Diagonal	25571721.953589

Cube

Length = n

Surface area	1961738891015064
Volume	5.9120068332539E+21
Space diagonal	31318835.31531

Equilateral Triangle

Length = n

Perimeter	54245814
Area	1.4157630960091E+14
Altitude	15659417.657655

Triangular Pyramid

Length = n

Surface area	1.4157630960091E+14
Volume	6.9673668703583E+20
Height	8523907.3178631