18307921 (number)

18307921 is an odd 8-digits composite number following 18307920 and preceding 18307922. In scientific notation, it is written as 1.8307921 × 10^7. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 18145792 positive integers (up to 18307921) that are relatively prime to 18307921.

Interesting facts

Basic properties

Name

Name eighteen million three hundred seven thousand nine hundred twenty-one

Notation

Scientific notation 1.8307921 × 10^7
Engineering notation 1.8307921 × 10^6

Prime Factorization of 18307921

Prime Factorization 113 × 162017

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 18307921
Product of the distinct prime numbers

The prime factorization of 18307921 is 113 × 162017. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 18307921)

Multiplication

n×y
n×2 36615842
n×3 54923763
n×4 73231684
n×5 91539605

Division

n÷y
n÷2 9153960.5
n÷3 6102640.3333333
n÷3 4576980.25
n÷5 3661584.2

Exponentiation

ny
n2 335179971342241
n3 6.136448436116E+21
n4 1.1234561318899E+29
n5 2.0568146109605E+36

Nth Root

y√n
2√n 4278.7756426342
3√n 263.56010784491
4√n 65.412350841674
5√n 28.348351295995

Divisors of 18307921

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 -18307920
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 18307921 can be divided by 4 positive divisors. The sum of these divisors (counting 18307921) is 1, the average is 0.25.

Base conversion 18307921

Base System Value
2 Binary 1000101110101101101010001
3 Ternary 1021110010202011
4 Quaternary 1011311231101
5 Quinary 14141323141
6 Senary 1452222521
8 Octal 105655521
10 Decimal 18307921
12 Duodecimal 616aa41
16 Hexadecimal 1175b51
20 Vigesimal 5e89g1
36 Base36 awehd

Cryptographic Hash Functions

md5 eb76d7a9ca4dce9f5ef782b8146b3729
sha1 a812b81c3f1e8ec1c57b307075831df798d7df85
sha256 25dc72ba0afa773e88bbf10145ab86157e328219c343dae82ef8977867c6b794
sha512 8ee1d8322e9e9c787d6bbecb273d50dc529275022c4573966d3d89fd829e8aaa2669e526ce18de24dfbc2820ea585496441f2a2cac755b1d20e7588fbd3ec0e2
ripemd-160 6e8cb9668e425bd4ee89a28d6fb9bf9c6187f4a8

18307921 as geometric shapes

Circle

Radius = n
Diameter 36615842
Circumference 115032060.2322
Area 1.0529989355992E+15

Sphere

Radius = n
Volume 2.570429510138E+22
Surface area 4.2119957423969E+15
Circumference 115032060.2322

Square

Length = n
Perimeter 73231684
Area 335179971342241
Diagonal 25891310.177055

Cube

Length = n
Surface area 2011079828053446
Volume 6.136448436116E+21
Space diagonal 31710249.352957

Equilateral Triangle

Length = n
Perimeter 54923763
Area 1.4513718501106E+14
Altitude 15855124.676479

Triangular Pyramid

Length = n
Surface area 1.4513718501106E+14
Volume 7.2318738359654E+20
Height 8630436.7256851