18998889 (number)

18998889 is an odd 8-digits composite number following 18998888 and preceding 18998890. In scientific notation, it is written as 1.8998889 × 10^7. The sum of its digits is 60. It has a total of 4 prime factors and 16 positive divisors. There are 10021248 positive integers (up to 18998889) that are relatively prime to 18998889.

Interesting facts

Basic properties

Name

Name eighteen million nine hundred ninety-eight thousand eight hundred eighty-nine

Notation

Scientific notation 1.8998889 × 10^7
Engineering notation 1.8998889 × 10^6

Prime Factorization of 18998889

Prime Factorization 13 × 3 × 7 × 69593

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 18998889
Product of the distinct prime numbers

The prime factorization of 18998889 is 13 × 3 × 7 × 69593. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 7, 94, 24, 424, 11, 179, 1871, 72198, 78591, 66417, 332715, 3774598, 7536234, 15013225, 50979821, 570065297, 647703960, 5675379084, 7458121871

Basic calculations (n = 18998889)

Multiplication

n×y
n×2 37997778
n×3 56996667
n×4 75995556
n×5 94994445

Division

n÷y
n÷2 9499444.5
n÷3 6332963
n÷3 4749722.25
n÷5 3799777.8

Exponentiation

ny
n2 360957783234321
n3 6.8577968573549E+21
n4 1.3029052127744E+29
n5 2.4753751515021E+36

Nth Root

y√n
2√n 4358.7715012375
3√n 266.8349637283
4√n 66.020992882851
5√n 28.559173910406

Divisors of 18998889

1, 3, 7, 13, 21, 39, 91, 273, 69593, 208779, 487151, 904709, 1461453, 2714127, 6332963, 18998889

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 -18998888
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 18998889 can be divided by 16 positive divisors. The sum of these divisors (counting 18998889) is 1, the average is 0.0625.

Base conversion 18998889

Base System Value
2 Binary 1001000011110011001101001
3 Ternary 1022202020120120
4 Quaternary 1020132121221
5 Quinary 14330431024
6 Senary 1515113453
8 Octal 110363151
10 Decimal 18998889
12 Duodecimal 6442889
16 Hexadecimal 121e669
20 Vigesimal 5ieh49
36 Base36 bb7mx

Cryptographic Hash Functions

md5 558d74dfe2d560affce57cc9180d2e42
sha1 81211df6efa8709c1cccb923697ed049b1f1c76d
sha256 d7fa2a8db688faf71f89ec37883113a10aa422cfa3e2cb76dc93d8900f3188a1
sha512 1809a87cafa5820039837d6ec5dd4fc9e008c08eae0828d427c56df6608833bd44379b2d22a951207e5e38bfc399271098ddec5b27fc894b3d31b10854c531b0
ripemd-160 446db7d1dc8711780b1c3d9e6f55083e009201c0

18998889 as geometric shapes

Circle

Radius = n
Diameter 37997778
Circumference 119373540.21754
Area 1.133982320065E+15

Sphere

Radius = n
Volume 2.8725872302503E+22
Surface area 4.53592928026E+15
Circumference 119373540.21754

Square

Length = n
Perimeter 75995556
Area 360957783234321
Diagonal 26868486.493821

Cube

Length = n
Surface area 2165746699405926
Volume 6.8577968573549E+21
Space diagonal 32907041.035361

Equilateral Triangle

Length = n
Perimeter 56996667
Area 1.5629930498732E+14
Altitude 16453520.517681

Triangular Pyramid

Length = n
Surface area 1.5629930498732E+14
Volume 8.0819911030591E+20
Height 8956162.164607