18406989 (number)

18406989 is an odd 8-digits composite number following 18406988 and preceding 18406990. In scientific notation, it is written as 1.8406989 × 10^7. The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors. There are 12206592 positive integers (up to 18406989) that are relatively prime to 18406989.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.8406989 × 10^7
Engineering notation 1.8406989 × 10^6

Prime Factorization of 18406989

Prime Factorization 9 × 193 × 10597

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 18406989
Product of the distinct prime numbers

The prime factorization of 18406989 is 9 × 193 × 10597. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 7, 25, 52, 767, 898, 5349, 980, 33892, 8370, 363072, 583626, 444122, 9336706, 70458634, 95353724, 14702983, 823301039, 6366083310, 2807614029

Basic calculations (n = 18406989)

Multiplication

n×y
n×2 36813978
n×3 55220967
n×4 73627956
n×5 92034945

Division

n÷y
n÷2 9203494.5
n÷3 6135663
n÷3 4601747.25
n÷5 3681397.8

Exponentiation

ny
n2 338817244046121
n3 6.2366052841673E+21
n4 1.1479712486301E+29
n5 2.113069414585E+36

Nth Root

y√n
2√n 4290.3367000738
3√n 264.03464593515
4√n 65.500661829281
5√n 28.378964879699

Divisors of 18406989

1, 9, 193, 1737, 10597, 95373, 2045221, 18406989

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 -18406988
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 18406989 can be divided by 8 positive divisors. The sum of these divisors (counting 18406989) is 1, the average is 0.125.

Base conversion 18406989

Base System Value
2 Binary 1000110001101111001001101
3 Ternary 1021122011122100
4 Quaternary 1012031321031
5 Quinary 14203010424
6 Senary 1454305313
8 Octal 106157115
10 Decimal 18406989
12 Duodecimal 61b8239
16 Hexadecimal 118de4d
20 Vigesimal 5f0h99
36 Base36 ayix9

Cryptographic Hash Functions

md5 7a6441fe29757293e8d135f618fdd798
sha1 6f3c0f9b0c0c69e018a5e6c45f6e58d047a5b4f0
sha256 d625c89078d9ae844150f821792dd45b19d736ec18f3a06ce870d8059e87da2a
sha512 e8d3bb32685c1f4d9b984d68f4569a615c070d1c554ca6d215b3b4e05accecee1978b9c2a2366c4fd444bc398dc6074a76e53f489a23d45615658b649a151324
ripemd-160 6272c950c8f7815cea5f3aad6687e4b4ee2205d6

18406989 as geometric shapes

Circle

Radius = n
Diameter 36813978
Circumference 115654522.83422
Area 1.0644257648048E+15

Sphere

Radius = n
Volume 2.6123831125439E+22
Surface area 4.2577030592193E+15
Circumference 115654522.83422

Square

Length = n
Perimeter 73627956
Area 338817244046121
Diagonal 26031413.486252

Cube

Length = n
Surface area 2032903464276726
Volume 6.2366052841673E+21
Space diagonal 31881840.162361

Equilateral Triangle

Length = n
Perimeter 55220967
Area 1.4671217029209E+14
Altitude 15940920.081181

Triangular Pyramid

Length = n
Surface area 1.4671217029209E+14
Volume 7.3499098133642E+20
Height 8677137.8287508