20155915 (number)

20155915 is an odd 8-digits composite number following 20155914 and preceding 20155916. In scientific notation, it is written as 2.0155915 × 10^7. The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors. There are 14884320 positive integers (up to 20155915) that are relatively prime to 20155915.

Interesting facts

Basic properties

Name

Name twenty million one hundred fifty-five thousand nine hundred fifteen

Notation

Scientific notation 2.0155915 × 10^7
Engineering notation 2.0155915 × 10^6

Prime Factorization of 20155915

Prime Factorization 13 × 5 × 310091

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 20155915
Product of the distinct prime numbers

The prime factorization of 20155915 is 13 × 5 × 310091. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 7, 27, 71, 501, 42, 619, 7727, 18686, 19721, 526919, 695359, 6713083, 6830052, 98475847, 24544500, 574155534, 25714533, 7157162725, 4515586530

Basic calculations (n = 20155915)

Multiplication

n×y
n×2 40311830
n×3 60467745
n×4 80623660
n×5 100779575

Division

n÷y
n÷2 10077957.5
n÷3 6718638.3333333
n÷3 5038978.75
n÷5 4031183

Exponentiation

ny
n2 406260909487225
n3 8.1885603594472E+21
n4 1.6504792657739E+29
n5 3.3266919790201E+36

Nth Root

y√n
2√n 4489.5339401769
3√n 272.1453006475
4√n 67.003984509706
5√n 28.898846196748

Divisors of 20155915

1, 5, 13, 65, 310091, 1550455, 4031183, 20155915

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 -20155914
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 20155915 can be divided by 8 positive divisors. The sum of these divisors (counting 20155915) is 1, the average is 0.125.

Base conversion 20155915

Base System Value
2 Binary 1001100111000111000001011
3 Ternary 1101221000201101
4 Quaternary 1030320320023
5 Quinary 20124442130
6 Senary 2000002231
8 Octal 114707013
10 Decimal 20155915
12 Duodecimal 6900377
16 Hexadecimal 1338e0b
20 Vigesimal 65j9ff
36 Base36 c00ej

Cryptographic Hash Functions

md5 2306d1ef859974a83e47d8197f3a9a90
sha1 8df53de6e662aaeff7fd91f15b670797383f2f78
sha256 229013dd7536b48315a9505bb5cef1cb4af4c12b877496b0d127e4dc080c6b05
sha512 9f416bc56836f1ab1572a1a8fd3cdf93ee1dfdd57fea9a0aedcda8db5000ba0ddc8aa4b089cf2c2a6650f4d0bd569aeabe731e06c4a3fd17f65b827f848dbfad
ripemd-160 3d5ef1c4b38b5b5e9d11cba931866297ded9c19e

20155915 as geometric shapes

Circle

Radius = n
Diameter 40311830
Circumference 126643348.98076
Area 1.2763062886858E+15

Sphere

Radius = n
Volume 3.4300161424955E+22
Surface area 5.1052251547431E+15
Circumference 126643348.98076

Square

Length = n
Perimeter 80623660
Area 406260909487225
Diagonal 28504768.355039

Cube

Length = n
Surface area 2437565456923350
Volume 8.1885603594472E+21
Space diagonal 34911068.85304

Equilateral Triangle

Length = n
Perimeter 60467745
Area 1.7591613409025E+14
Altitude 17455534.42652

Triangular Pyramid

Length = n
Surface area 1.7591613409025E+14
Volume 9.6503109305341E+20
Height 9501589.4516798