18888921 (number)

18888921 is an odd 8-digits composite number following 18888920 and preceding 18888922. In scientific notation, it is written as 1.8888921 × 10^7. The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors. There are 11851776 positive integers (up to 18888921) that are relatively prime to 18888921.

Interesting facts

Basic properties

Name

Name eighteen million eight hundred eighty-eight thousand nine hundred twenty-one

Notation

Scientific notation 1.8888921 × 10^7
Engineering notation 1.8888921 × 10^6

Prime Factorization of 18888921

Prime Factorization 51 × 3 × 123457

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 18888921
Product of the distinct prime numbers

The prime factorization of 18888921 is 51 × 3 × 123457. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 10, 67, 66, 771, 636, 7508, 3649, 20892, 88282, 332203, 241326, 4865531, 6720002, 47025518, 34297803, 61711683, 2668063, 3911198471, 1089256534

Basic calculations (n = 18888921)

Multiplication

n×y
n×2 37777842
n×3 56666763
n×4 75555684
n×5 94444605

Division

n÷y
n÷2 9444460.5
n÷3 6296307
n÷3 4722230.25
n÷5 3777784.2

Exponentiation

ny
n2 356791336544241
n3 6.7394033694686E+21
n4 1.2730005783303E+29
n5 2.4045607357035E+36

Nth Root

y√n
2√n 4346.1386310149
3√n 266.31914226248
4√n 65.925250329558
5√n 28.526036268953

Divisors of 18888921

1, 3, 51, 153, 123457, 370371, 6296307, 18888921

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 -18888920
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 18888921 can be divided by 8 positive divisors. The sum of these divisors (counting 18888921) is 1, the average is 0.125.

Base conversion 18888921

Base System Value
2 Binary 1001000000011100011011001
3 Ternary 1022112122201200
4 Quaternary 1020003203121
5 Quinary 14313421141
6 Senary 1512504413
8 Octal 110034331
10 Decimal 18888921
12 Duodecimal 63ab109
16 Hexadecimal 12038d9
20 Vigesimal 5i1261
36 Base36 b8us9

Cryptographic Hash Functions

md5 01410498dc5c4f3d924c62409406c1e7
sha1 22760f4e68bfa9a2712c563edf1d90d1fe14340b
sha256 ffa989f0a77232ed19d6aab845521827528c64d7a3871aa403b16cc3eeb587e2
sha512 3e83db4a1ed4fb9f8637c2b9ba9df2b21d1aba4ad99a1e35c82a622e959a18555f6d6c8395f72043aa946dc60e48e3b438f2f41da49216103c907ff33c518fb0
ripemd-160 a4c87554e13266ec81964772f7bd2a7323c266c0

18888921 as geometric shapes

Circle

Radius = n
Diameter 37777842
Circumference 118682590.89568
Area 1.1208930417519E+15

Sphere

Radius = n
Volume 2.8229946820134E+22
Surface area 4.4835721670075E+15
Circumference 118682590.89568

Square

Length = n
Perimeter 75555684
Area 356791336544241
Diagonal 26712968.256794

Cube

Length = n
Surface area 2140748019265446
Volume 6.7394033694686E+21
Space diagonal 32716570.872155

Equilateral Triangle

Length = n
Perimeter 56666763
Area 1.5449518064876E+14
Altitude 16358285.436077

Triangular Pyramid

Length = n
Surface area 1.5449518064876E+14
Volume 7.9424630395045E+20
Height 8904322.7522647