18646989 (number)

18646989 is an odd 8-digits composite number following 18646988 and preceding 18646990. In scientific notation, it is written as 1.8646989 × 10^7. The sum of its digits is 51. It has a total of 4 prime factors and 16 positive divisors. There are 12188160 positive integers (up to 18646989) that are relatively prime to 18646989.

Interesting facts

Basic properties

Name

Name eighteen million six hundred forty-six thousand nine hundred eighty-nine

Notation

Scientific notation 1.8646989 × 10^7
Engineering notation 1.8646989 × 10^6

Prime Factorization of 18646989

Prime Factorization 3 × 139 × 461 × 97

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 18646989
Product of the distinct prime numbers

The prime factorization of 18646989 is 3 × 139 × 461 × 97. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 8, 19, 25, 19, 767, 2010, 1614, 916, 46316, 736826, 463130, 4491254, 6906312, 62012244, 9087652, 987717996, 857073874, 7304388384, 1951639781

Basic calculations (n = 18646989)

Multiplication

n×y
n×2 37293978
n×3 55940967
n×4 74587956
n×5 93234945

Division

n÷y
n÷2 9323494.5
n÷3 6215663
n÷3 4661747.25
n÷5 3729397.8

Exponentiation

ny
n2 347710198766121
n3 6.4837482515797E+21
n4 1.2090238232598E+29
n5 2.2544653933063E+36

Nth Root

y√n
2√n 4318.2159510613
3√n 265.17723518048
4√n 65.713133779034
5√n 28.452585883599

Divisors of 18646989

1, 3, 97, 139, 291, 417, 461, 1383, 13483, 40449, 44717, 64079, 134151, 192237, 6215663, 18646989

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18646988
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18646989 can be divided by 16 positive divisors. The sum of these divisors (counting 18646989) is 1, the average is 0.0625.

Base conversion 18646989

Base System Value
2 Binary 1000111001000011111001101
3 Ternary 1022002100212020
4 Quaternary 1013020133031
5 Quinary 14233200424
6 Senary 1503400353
8 Octal 107103715
10 Decimal 18646989
12 Duodecimal 62b30b9
16 Hexadecimal 11c87cd
20 Vigesimal 5gah99
36 Base36 b3o3x

Cryptographic Hash Functions

md5 99b9ef93fd7682538b1eaa6b96c95985
sha1 aeaa203baede43b5b7ede11785e707721468a87d
sha256 4015e744561b924a86f3bdfbbad73ede5402171dcb64c89298668e2655f2a67d
sha512 a244b5a576310a59364cebf13df00f71837dc8022a3597374a00abee52d0da263cee5ad2d827ee1b674eb1b10a8224ea44f8b7b461ee7c599eca028af5366b5d
ripemd-160 f2dcdc5910fde150a351795825afd58f982a30e1

18646989 as geometric shapes

Circle

Radius = n
Diameter 37293978
Circumference 117162487.30794
Area 1.0923638060219E+15

Sphere

Radius = n
Volume 2.7159061166518E+22
Surface area 4.3694552240876E+15
Circumference 117162487.30794

Square

Length = n
Perimeter 74587956
Area 347710198766121
Diagonal 26370824.741222

Cube

Length = n
Surface area 2086261192596726
Volume 6.4837482515797E+21
Space diagonal 32297532.356178

Equilateral Triangle

Length = n
Perimeter 55940967
Area 1.505629326432E+14
Altitude 16148766.178089

Triangular Pyramid

Length = n
Surface area 1.505629326432E+14
Volume 7.641170593664E+20
Height 8790274.9137406