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

18981385 (number)

18981385 is an odd 8-digits composite number following 18981384 and preceding 18981386. In scientific notation, it is written as 1.8981385 × 10^7. The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors. There are 15185104 positive integers (up to 18981385) that are relatively prime to 18981385.

Interesting facts

18981385 has 4 divisors, whose sum is 22777668
The reverse of 18981385 is 58318981
Previous prime number is 5

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7

Name

Name	eighteen million nine hundred eighty-one thousand three hundred eighty-five

Notation

Scientific notation	1.8981385 × 10^7
Engineering notation	1.8981385 × 10^6

Prime Factorization of 18981385

Prime Factorization 5 × 3796277

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	18981385	Product of the distinct prime numbers

The prime factorization of 18981385 is 5 × 3796277. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 2, 67, 23, 710, 671, 4986, 6486, 61769, 22651, 187269, 445609, 7359046, 5391293, 71585907, 7160623, 691587253, 513416902, 6195356938, 4918693996

Basic calculations (n = 18981385)

Multiplication

n×y

n×2	37962770
n×3	56944155
n×4	75925540
n×5	94906925

Division

n÷y

n÷2	9490692.5
n÷3	6327128.3333333
n÷3	4745346.25
n÷5	3796277

Exponentiation

n^y

n²	360292976518225
n³	6.8388597000884E+21
n⁴	1.2981102892836E+29
n⁵	2.4639931173354E+36

Nth Root

^y√n

²√n	4356.7631333365
³√n	266.75299201701
⁴√n	66.005781059968
⁵√n	28.553909559332

Divisors of 18981385

1, 5, 3796277, 18981385

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	-18981384	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 18981385 can be divided by 4 positive divisors. The sum of these divisors (counting 18981385) is 1, the average is 0.25.

Base conversion 18981385

Base	System	Value
2	Binary	1001000011010001000001001
3	Ternary	1022201100120021
4	Quaternary	1020122020021
5	Quinary	14324401020
6	Senary	1514500441
8	Octal	110321011
10	Decimal	18981385
12	Duodecimal	6434721
16	Hexadecimal	121a209
20	Vigesimal	5icd95
36	Base36	bau4p

Cryptographic Hash Functions

md5	a2bcdc32e3cf5df3de36e019a95eb969
sha1	be514f74ff61c0d93ae22df3c0af0d39a0f04f78
sha256	e235cd062c3e42d23716c41deb0d18b04510cbcc603de0ba3e4a88f035d2bbbc
sha512	192ac390d555a8f3a0ac50adfddf0f4b22d80906d5d4a4bdc61b190521a331bddc07fb4a2da291f6e79e49e7aca15cf2611b18836b1eaf18f2e845bd8615d561
ripemd-160	6e755d7895556219feccd9efeb03e9c0cd583121

18981385 as geometric shapes

Circle

Radius = n

Diameter	37962770
Circumference	119263559.34192
Area	1.1318937681697E+15

Sphere

Radius = n

Volume	2.8646548523639E+22
Surface area	4.5275750726786E+15
Circumference	119263559.34192

Square

Length = n

Perimeter	75925540
Area	360292976518225
Diagonal	26843732.099625

Cube

Length = n

Surface area	2161757859109350
Volume	6.8388597000884E+21
Space diagonal	32876723.218026

Equilateral Triangle

Length = n

Perimeter	56944155
Area	1.5601143523495E+14
Altitude	16438361.609013

Triangular Pyramid

Length = n

Surface area	1.5601143523495E+14
Volume	8.0596734491932E+20
Height	8947910.6998751