18996921 (number)

18996921 is an odd 8-digits composite number following 18996920 and preceding 18996922. In scientific notation, it is written as 1.8996921 × 10^7. The sum of its digits is 45. It has a total of 2 prime factors and 4 positive divisors. There are 12664608 positive integers (up to 18996921) that are relatively prime to 18996921.

Interesting facts

Basic properties

Name

Name eighteen million nine hundred ninety-six thousand nine hundred twenty-one

Notation

Scientific notation 1.8996921 × 10^7
Engineering notation 1.8996921 × 10^6

Prime Factorization of 18996921

Prime Factorization 9 × 2110769

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 18996921
Product of the distinct prime numbers

The prime factorization of 18996921 is 9 × 2110769. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 6, 28, 32, 935, 422, 7982, 7210, 15690, 12196, 880641, 662006, 3408043, 7151184, 44273765, 49285776, 752392772, 920675682, 6051816340, 7012985310

Basic calculations (n = 18996921)

Multiplication

n×y
n×2 37993842
n×3 56990763
n×4 75987684
n×5 94984605

Division

n÷y
n÷2 9498460.5
n÷3 6332307
n÷3 4749230.25
n÷5 3799384.2

Exponentiation

ny
n2 360883007480241
n3 6.8556659833445E+21
n4 1.3023654508798E+29
n5 2.4740933583494E+36

Nth Root

y√n
2√n 4358.5457437086
3√n 266.8257500432
4√n 66.019283120226
5√n 28.558582225458

Divisors of 18996921

1, 9, 2110769, 18996921

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18996920
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18996921 can be divided by 4 positive divisors. The sum of these divisors (counting 18996921) is 1, the average is 0.25.

Base conversion 18996921

Base System Value
2 Binary 1001000011101111010111001
3 Ternary 1022202010212200
4 Quaternary 1020131322321
5 Quinary 14330400141
6 Senary 1515100413
8 Octal 110357271
10 Decimal 18996921
12 Duodecimal 6441709
16 Hexadecimal 121deb9
20 Vigesimal 5iec61
36 Base36 bb649

Cryptographic Hash Functions

md5 5fa424677c811121fc711773b144ccca
sha1 a395e4101d3ae2ea15237069ef007ef4cf1bebd4
sha256 15ca4519cdf90922b927307af3312d0c30bb9a1f2e78ad321062b8aa0e46b25c
sha512 23143b5290db6a49db3ab997fe1ee2f7b773e0ce74266786a2b1df70b03cc1df19dc08b4a14e3301e9e87a464e46ae829046ecb63e661c45c553b873e8667d52
ripemd-160 6d90b4e1a61622a9f3cac4860974d630c52ccdfe

18996921 as geometric shapes

Circle

Radius = n
Diameter 37993842
Circumference 119361174.90885
Area 1.1337474051053E+15

Sphere

Radius = n
Volume 2.8716946518321E+22
Surface area 4.5349896204213E+15
Circumference 119361174.90885

Square

Length = n
Perimeter 75987684
Area 360883007480241
Diagonal 26865703.32153

Cube

Length = n
Surface area 2165298044881446
Volume 6.8556659833445E+21
Space diagonal 32903632.359372

Equilateral Triangle

Length = n
Perimeter 56990763
Area 1.5626692613601E+14
Altitude 16451816.179686

Triangular Pyramid

Length = n
Surface area 1.5626692613601E+14
Volume 8.0794798439548E+20
Height 8955234.4405101