18946989 (number)

18946989 is an odd 8-digits composite number following 18946988 and preceding 18946990. In scientific notation, it is written as 1.8946989 × 10^7. The sum of its digits is 54. It has a total of 4 prime factors and 16 positive divisors. There are 12307680 positive integers (up to 18946989) that are relatively prime to 18946989.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.8946989 × 10^7
Engineering notation 1.8946989 × 10^6

Prime Factorization of 18946989

Prime Factorization 9 × 199 × 71 × 149

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 18946989
Product of the distinct prime numbers

The prime factorization of 18946989 is 9 × 199 × 71 × 149. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 4, 19, 47, 764, 727, 1483, 4276, 76284, 13094, 359785, 395201, 6663169, 4508674, 13587943, 240317, 997033607, 930425989, 5849227190, 7903586974

Basic calculations (n = 18946989)

Multiplication

n×y
n×2 37893978
n×3 56840967
n×4 75787956
n×5 94734945

Division

n÷y
n÷2 9473494.5
n÷3 6315663
n÷3 4736747.25
n÷5 3789397.8

Exponentiation

ny
n2 358988392166121
n3 6.8017491174992E+21
n4 1.2887266571002E+29
n5 2.4417489796084E+36

Nth Root

y√n
2√n 4352.8139174562
3√n 266.59176768028
4√n 65.975858595824
5√n 28.543553592797

Divisors of 18946989

1, 9, 71, 149, 199, 639, 1341, 1791, 10579, 14129, 29651, 95211, 127161, 266859, 2105221, 18946989

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 -18946988
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 18946989 can be divided by 16 positive divisors. The sum of these divisors (counting 18946989) is 1, the average is 0.0625.

Base conversion 18946989

Base System Value
2 Binary 1001000010001101110101101
3 Ternary 1022122121101100
4 Quaternary 1020101232231
5 Quinary 14322300424
6 Senary 1514033313
8 Octal 110215655
10 Decimal 18946989
12 Duodecimal 6418839
16 Hexadecimal 1211bad
20 Vigesimal 5i8799
36 Base36 ba3l9

Cryptographic Hash Functions

md5 94116d6e96f058071b685441c7748123
sha1 6d5b7b5e701e24f2e3ffc8e2d40696a3476edd49
sha256 73780208bab3005f1ade65ca094d7222881668942329273c6907af4d5cbadfbc
sha512 9cf5fc23630916642254146d6be9b1bf6f14b6c2109577148b53a64559868b0283bf9ccb7221305064a1027fd04d1ca70c1e8610f2e18f40cc82e8791953ac9d
ripemd-160 35d65a7094de0adf93d747069cf889821a08dd9e

18946989 as geometric shapes

Circle

Radius = n
Diameter 37893978
Circumference 119047442.90009
Area 1.1277952955531E+15

Sphere

Radius = n
Volume 2.8491100078795E+22
Surface area 4.5111811822124E+15
Circumference 119047442.90009

Square

Length = n
Perimeter 75787956
Area 358988392166121
Diagonal 26795088.809934

Cube

Length = n
Surface area 2153930352996726
Volume 6.8017491174992E+21
Space diagonal 32817147.598449

Equilateral Triangle

Length = n
Perimeter 56840967
Area 1.554465336398E+14
Altitude 16408573.799224

Triangular Pyramid

Length = n
Surface area 1.554465336398E+14
Volume 8.0159382081888E+20
Height 8931696.2699779