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

18397989 (number)

18397989 is an odd 8-digits composite number following 18397988 and preceding 18397990. In scientific notation, it is written as 1.8397989 × 10^7. The sum of its digits is 54. It has a total of 3 prime factors and 8 positive divisors. There are 12265308 positive integers (up to 18397989) that are relatively prime to 18397989.

Interesting facts

18397989 has 8 divisors, whose sum is 27256320
The reverse of 18397989 is 98979381
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 54
Digital Root 9

Name

Name	eighteen million three hundred ninety-seven thousand nine hundred eighty-nine

Notation

Scientific notation	1.8397989 × 10^7
Engineering notation	1.8397989 × 10^6

Prime Factorization of 18397989

Prime Factorization 9 × 3 × 681407

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	18397989	Product of the distinct prime numbers

The prime factorization of 18397989 is 9 × 3 × 681407. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 6, 26, 31, 289, 478, 7233, 2115, 40292, 70888, 454208, 892928, 6043616, 9054107, 92326053, 81880595, 992542572, 717401076, 2772126696, 9004880322

Basic calculations (n = 18397989)

Multiplication

n×y

n×2	36795978
n×3	55193967
n×4	73591956
n×5	91989945

Division

n÷y

n÷2	9198994.5
n÷3	6132663
n÷3	4599497.25
n÷5	3679597.8

Exponentiation

n^y

n²	338485999244121
n³	6.2274616907473E+21
n⁴	1.1457277168429E+29
n⁵	2.1079085931471E+36

Nth Root

^y√n

²√n	4289.2877031041
³√n	263.99160613808
⁴√n	65.492653810211
⁵√n	28.3761891878

Divisors of 18397989

1, 3, 9, 27, 681407, 2044221, 6132663, 18397989

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	-18397988	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 18397989 can be divided by 8 positive divisors. The sum of these divisors (counting 18397989) is 1, the average is 0.125.

Base conversion 18397989

Base	System	Value
2	Binary	1000110001011101100100101
3	Ternary	1021121201022000
4	Quaternary	1012023230211
5	Quinary	14202213424
6	Senary	1454155513
8	Octal	106135445
10	Decimal	18397989
12	Duodecimal	61b2b99
16	Hexadecimal	118bb25
20	Vigesimal	5ejej9
36	Base36	aybz9

Cryptographic Hash Functions

md5	81c98e46364f169f3eb3586b4d8968b6
sha1	2076e29f1a92ee71a0c9b56f87ad1702fd89db57
sha256	5092cee919896578e666194039a714bfd0ebf97f4bd6dcee3c3ee7bd4a71401b
sha512	39ed21d03f27868acbe16cfb111158a34ce560ead384b59df95c08c10ec22229bc4c526413610d6c8a6a3c12d014d6383e78b4c362f8198103f4c5a9b995560e
ripemd-160	e1f11ae20a14bd34a3b3c774cc4c56aa14b2c277

18397989 as geometric shapes

Circle

Radius = n

Diameter	36795978
Circumference	115597974.16645
Area	1.0633851285683E+15

Sphere

Radius = n

Volume	2.6085530530885E+22
Surface area	4.2535405142733E+15
Circumference	115597974.16645

Square

Length = n

Perimeter	73591956
Area	338485999244121
Diagonal	26018685.564191

Cube

Length = n

Surface area	2030915995464726
Volume	6.2274616907473E+21
Space diagonal	31866251.705093

Equilateral Triangle

Length = n

Perimeter	55193967
Area	1.4656873708538E+14
Altitude	15933125.852547

Triangular Pyramid

Length = n

Surface area	1.4656873708538E+14
Volume	7.3391339851782E+20
Height	8672895.1880637