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

18391381 (number)

18391381 is an odd 8-digits composite number following 18391380 and preceding 18391382. In scientific notation, it is written as 1.8391381 × 10^7. The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors. There are 18298764 positive integers (up to 18391381) that are relatively prime to 18391381.

Interesting facts

18391381 has 4 divisors, whose sum is 18484000
The reverse of 18391381 is 18319381
Previous prime number is 199

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7

Name

Name	eighteen million three hundred ninety-one thousand three hundred eighty-one

Notation

Scientific notation	1.8391381 × 10^7
Engineering notation	1.8391381 × 10^6

Prime Factorization of 18391381

Prime Factorization 199 × 92419

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	18391381	Product of the distinct prime numbers

The prime factorization of 18391381 is 199 × 92419. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 8, 54, 9, 374, 8, 5355, 4074, 99784, 65306, 219520, 870129, 6845810, 8335843, 24013181, 50099263, 2099833, 155319377, 601838556, 8000517728

Basic calculations (n = 18391381)

Multiplication

n×y

n×2	36782762
n×3	55174143
n×4	73565524
n×5	91956905

Division

n÷y

n÷2	9195690.5
n÷3	6130460.3333333
n÷3	4597845.25
n÷5	3678276.2

Exponentiation

n^y

n²	338242895087161
n³	6.220753954091E+21
n⁴	1.1440825607694E+29
n⁵	2.1041258270566E+36

Nth Root

^y√n

²√n	4288.5173428587
³√n	263.95999642561
⁴√n	65.486772273939
⁵√n	28.374150521476

Divisors of 18391381

1, 199, 92419, 18391381

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	-18391380	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 18391381 can be divided by 4 positive divisors. The sum of these divisors (counting 18391381) is 1, the average is 0.25.

Base conversion 18391381

Base	System	Value
2	Binary	1000110001010000101010101
3	Ternary	1021121101020021
4	Quaternary	1012022011111
5	Quinary	14202011011
6	Senary	1454105141
8	Octal	106120525
10	Decimal	18391381
12	Duodecimal	61ab1b1
16	Hexadecimal	118a155
20	Vigesimal	5eii91
36	Base36	ay6vp

Cryptographic Hash Functions

md5	b739321f0f36e90687d424a40504e025
sha1	9acce951b86d0a8e318b6bae649cd5f4657253f8
sha256	956be0aa36f0e2d91e78551149f0b33ce2a1d9f153c8060121e2b9dd8c082ded
sha512	dd871b870bf5b6590f4cc619a4091ad1679c3ebc24869b8a07e4bdb5179588fd4a394c0039cd3d7d39aead1b873ce03690d8fcb7a2777b72ee02cd40b821e1c9
ripemd-160	40bbda68a42b4a292f84d356d85f34abbbc1d2df

18391381 as geometric shapes

Circle

Radius = n

Diameter	36782762
Circumference	115556454.87794
Area	1.0626213943348E+15

Sphere

Radius = n

Volume	2.6057433229283E+22
Surface area	4.2504855773391E+15
Circumference	115556454.87794

Square

Length = n

Perimeter	73565524
Area	338242895087161
Diagonal	26009340.440971

Cube

Length = n

Surface area	2029457370522966
Volume	6.220753954091E+21
Space diagonal	31854806.313357

Equilateral Triangle

Length = n

Perimeter	55174143
Area	1.4646346989754E+14
Altitude	15927403.156678

Triangular Pyramid

Length = n

Surface area	1.4646346989754E+14
Volume	7.331228841718E+20
Height	8669780.1469903