20155561 (number)

20155561 is an odd 8-digits composite number following 20155560 and preceding 20155562. In scientific notation, it is written as 2.0155561 × 10^7. The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors. There are 19057680 positive integers (up to 20155561) that are relatively prime to 20155561.

Interesting facts

Basic properties

Name

Name twenty million one hundred fifty-five thousand five hundred sixty-one

Notation

Scientific notation 2.0155561 × 10^7
Engineering notation 2.0155561 × 10^6

Prime Factorization of 20155561

Prime Factorization 19 × 1021 × 1039

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 20155561
Product of the distinct prime numbers

The prime factorization of 20155561 is 19 × 1021 × 1039. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20155561)

Multiplication

n×y
n×2 40311122
n×3 60466683
n×4 80622244
n×5 100777805

Division

n÷y
n÷2 10077780.5
n÷3 6718520.3333333
n÷3 5038890.25
n÷5 4031112.2

Exponentiation

ny
n2 406246639224721
n3 8.1881289179389E+21
n4 1.6503633188138E+29
n5 3.3263998544514E+36

Nth Root

y√n
2√n 4489.494514976
3√n 272.14370740137
4√n 67.003690308639
5√n 28.89874468547

Divisors of 20155561

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 -20155560
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 20155561 can be divided by 8 positive divisors. The sum of these divisors (counting 20155561) is 1, the average is 0.125.

Base conversion 20155561

Base System Value
2 Binary 1001100111000110010101001
3 Ternary 1101221000020021
4 Quaternary 1030320302221
5 Quinary 20124434221
6 Senary 2000000441
8 Octal 114706251
10 Decimal 20155561
12 Duodecimal 6900121
16 Hexadecimal 1338ca9
20 Vigesimal 65j8i1
36 Base36 c004p

Cryptographic Hash Functions

md5 eb6a4c003341a5d179d085b570a03435
sha1 ebe8eae6512eb06ad44b5bf7a65933f13bf5815c
sha256 97ef745bd8291e515c1e478c41019fd15c136a29133da39c875690d8fa54b8dc
sha512 9165769c5850541d266cfe7f4eeb24202e95dff1e3a1846dea634cc8b72715ad8a2d223d4e76eb354f80cf7db5f027ba2a6a085aedd8287f57cf945425526fc7
ripemd-160 5aa7b7a490c5a867d795e7c1f2430847abcd7d69

20155561 as geometric shapes

Circle

Radius = n
Diameter 40311122
Circumference 126641124.73316
Area 1.2762614573339E+15

Sphere

Radius = n
Volume 3.429835420699E+22
Surface area 5.1050458293357E+15
Circumference 126641124.73316

Square

Length = n
Perimeter 80622244
Area 406246639224721
Diagonal 28504267.723438

Cube

Length = n
Surface area 2437479835348326
Volume 8.1881289179389E+21
Space diagonal 34910455.707054

Equilateral Triangle

Length = n
Perimeter 60466683
Area 1.7590995488533E+14
Altitude 17455227.853527

Triangular Pyramid

Length = n
Surface area 1.7590995488533E+14
Volume 9.6498024718404E+20
Height 9501422.5744794