18706961 (number)

18706961 is an odd 8-digits composite number following 18706960 and preceding 18706962. In scientific notation, it is written as 1.8706961 × 10^7. The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors. There are 14731200 positive integers (up to 18706961) that are relatively prime to 18706961.

Interesting facts

Basic properties

Name

Name eighteen million seven hundred six thousand nine hundred sixty-one

Notation

Scientific notation 1.8706961 × 10^7
Engineering notation 1.8706961 × 10^6

Prime Factorization of 18706961

Prime Factorization 13 × 7 × 661 × 311

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 18706961
Product of the distinct prime numbers

The prime factorization of 18706961 is 13 × 7 × 661 × 311. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 8, 96, 26, 47, 487, 8169, 1721, 79468, 45257, 87389, 168814, 3819327, 9268863, 86175353, 49317193, 905644415, 397950386, 3689049636, 3078775467

Basic calculations (n = 18706961)

Multiplication

n×y
n×2 37413922
n×3 56120883
n×4 74827844
n×5 93534805

Division

n÷y
n÷2 9353480.5
n÷3 6235653.6666667
n÷3 4676740.25
n÷5 3741392.2

Exponentiation

ny
n2 349950389855521
n3 6.546508294962E+21
n4 1.2246527536003E+29
n5 2.2909531300144E+36

Nth Root

y√n
2√n 4325.1544481093
3√n 265.46121651338
4√n 65.765906426577
5√n 28.470864089559

Divisors of 18706961

1, 7, 13, 91, 311, 661, 2177, 4043, 4627, 8593, 28301, 60151, 205571, 1438997, 2672423, 18706961

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 -18706960
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 18706961 can be divided by 16 positive divisors. The sum of these divisors (counting 18706961) is 1, the average is 0.0625.

Base conversion 18706961

Base System Value
2 Binary 1000111010111001000010001
3 Ternary 1022012102010102
4 Quaternary 1013113020101
5 Quinary 14242110321
6 Senary 1504542145
8 Octal 107271021
10 Decimal 18706961
12 Duodecimal 6321955
16 Hexadecimal 11d7211
20 Vigesimal 5gi781
36 Base36 b4ydt

Cryptographic Hash Functions

md5 63286b95b2ed0258d8ca4f448a04808c
sha1 cfa9ccf938f9c9ad7b1e49073bd5fa4837711ed7
sha256 18a46452565cc1f05af9d05aee4126c3f8057b15c3914fd1cc58b83b5718b99f
sha512 8bc4678f0a1e8bed0c2ab2e3b3b038503ba522dc741140271bad0d69470d3b4a5073ac9604f4191aade92b295be2c0e0a44d4c11fac18f2d904b0da3bc032619
ripemd-160 a140f80a790ece441893da3161510d6db9250721

18706961 as geometric shapes

Circle

Radius = n
Diameter 37413922
Circumference 117539302.49718
Area 1.099401573891E+15

Sphere

Radius = n
Volume 2.742194982149E+22
Surface area 4.397606295564E+15
Circumference 117539302.49718

Square

Length = n
Perimeter 74827844
Area 349950389855521
Diagonal 26455637.956985

Cube

Length = n
Surface area 2099702339133126
Volume 6.546508294962E+21
Space diagonal 32401406.907209

Equilateral Triangle

Length = n
Perimeter 56120883
Area 1.5153296383957E+14
Altitude 16200703.453605

Triangular Pyramid

Length = n
Surface area 1.5153296383957E+14
Volume 7.7151340141027E+20
Height 8818545.9856615