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

18934981 (number)

18934981 is an odd 8-digits composite number following 18934980 and preceding 18934982. In scientific notation, it is written as 1.8934981 × 10^7. The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors. There are 17478432 positive integers (up to 18934981) that are relatively prime to 18934981.

Interesting facts

18934981 has 4 divisors, whose sum is 20391532
The reverse of 18934981 is 18943981
Previous prime number is 13

Basic properties

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

Name

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

Notation

Scientific notation	1.8934981 × 10^7
Engineering notation	1.8934981 × 10^6

Prime Factorization of 18934981

Prime Factorization 13 × 1456537

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	18934981	Product of the distinct prime numbers

The prime factorization of 18934981 is 13 × 1456537. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 10, 68, 76, 303, 588, 5440, 6335, 62280, 11577, 693919, 113754, 6374518, 3315951, 6375551, 81548372, 641241883, 722070992, 3293114182, 416342294

Basic calculations (n = 18934981)

Multiplication

n×y

n×2	37869962
n×3	56804943
n×4	75739924
n×5	94674905

Division

n÷y

n÷2	9467490.5
n÷3	6311660.3333333
n÷3	4733745.25
n÷5	3786996.2

Exponentiation

n^y

n²	358533505470361
n³	6.7888251139447E+21
n⁴	1.2854627454487E+29
n⁵	2.4340212661278E+36

Nth Root

^y√n

²√n	4351.4343612193
³√n	266.53543664593
⁴√n	65.965402759472
⁵√n	28.539934675675

Divisors of 18934981

1, 13, 1456537, 18934981

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	-18934980	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 18934981 can be divided by 4 positive divisors. The sum of these divisors (counting 18934981) is 1, the average is 0.25.

Base conversion 18934981

Base	System	Value
2	Binary	1001000001110110011000101
3	Ternary	1022121222220121
4	Quaternary	1020032303011
5	Quinary	14321404411
6	Senary	1513501541
8	Octal	110166305
10	Decimal	18934981
12	Duodecimal	64118b1
16	Hexadecimal	120ecc5
20	Vigesimal	5i6h91
36	Base36	b9ubp

Cryptographic Hash Functions

md5	4601104ab4de008f8f4048c0803dc310
sha1	76289673c6fbd1c1cd5d01e754dd06c9ae100313
sha256	7e65e8ad7b113d7dda71fa6ba9a7d395f38d1077c562fc30c975cccb8b4c1cc6
sha512	d1a09665905056609e1fe7e1120c177fc72e9f58e9fb43e723bc0428e8ccd0c9d51fc28abb2583c7e02121496115b17861e27a3cc44ccc9b2014db0ebea0f4d0
ripemd-160	2d1dd9e81d4a3d9d29a456f9f4b0d92b5d6bf621

18934981 as geometric shapes

Circle

Radius = n

Diameter	37869962
Circumference	118971994.41092
Area	1.1263662268515E+15

Sphere

Radius = n

Volume	2.8436964139299E+22
Surface area	4.5054649074059E+15
Circumference	118971994.41092

Square

Length = n

Perimeter	75739924
Area	358533505470361
Diagonal	26778106.933477

Cube

Length = n

Surface area	2151201032822166
Volume	6.7888251139447E+21
Space diagonal	32796349.132351

Equilateral Triangle

Length = n

Perimeter	56804943
Area	1.5524956192261E+14
Altitude	16398174.566176

Triangular Pyramid

Length = n

Surface area	1.5524956192261E+14
Volume	8.000707123933E+20
Height	8926035.6444923