20155845 (number)

20155845 is an odd 8-digits composite number following 20155844 and preceding 20155846. In scientific notation, it is written as 2.0155845 × 10^7. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 10749776 positive integers (up to 20155845) that are relatively prime to 20155845.

Interesting facts

Basic properties

Name

Name twenty million one hundred fifty-five thousand eight hundred forty-five

Notation

Scientific notation 2.0155845 × 10^7
Engineering notation 2.0155845 × 10^6

Prime Factorization of 20155845

Prime Factorization 5 × 3 × 1343723

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 20155845
Product of the distinct prime numbers

The prime factorization of 20155845 is 5 × 3 × 1343723. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 2, 8, 62, 348, 324, 3205, 7173, 99404, 74177, 670711, 488943, 3180442, 2756981, 7175654, 1569562, 475675682, 937432761, 4905180849, 3427240082

Basic calculations (n = 20155845)

Multiplication

n×y
n×2 40311690
n×3 60467535
n×4 80623380
n×5 100779225

Division

n÷y
n÷2 10077922.5
n÷3 6718615
n÷3 5038961.25
n÷5 4031169

Exponentiation

ny
n2 406258087664025
n3 8.1884750449525E+21
n4 1.6504563379243E+29
n5 3.326634212647E+36

Nth Root

y√n
2√n 4489.5261442607
3√n 272.14498560031
4√n 67.003926334661
5√n 28.898826124009

Divisors of 20155845

1, 3, 5, 15, 1343723, 4031169, 6718615, 20155845

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 -20155844
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 20155845 can be divided by 8 positive divisors. The sum of these divisors (counting 20155845) is 1, the average is 0.125.

Base conversion 20155845

Base System Value
2 Binary 1001100111000110111000101
3 Ternary 1101221000121210
4 Quaternary 1030320313011
5 Quinary 20124441340
6 Senary 2000002033
8 Octal 114706705
10 Decimal 20155845
12 Duodecimal 6900319
16 Hexadecimal 1338dc5
20 Vigesimal 65j9c5
36 Base36 c00cl

Cryptographic Hash Functions

md5 7da6857270d274c97779c4f0b6c257d9
sha1 89dafe1b5e29a9d439a4129d25e4b80b0d790811
sha256 83809299214394adccd53bb12c5e0dfba91f93465107d80317945434c04ef42e
sha512 3031f6dcc9fd1374457f43b74a314d692ee01d67040cef4d400993d16033ae25f0d77ff01e2e0453f97a4f1d75a0fec286de0c4cbc857ade1f1f1fd6f7d7673a
ripemd-160 860e046c81204043eef7a6ce7808124e47c19d48

20155845 as geometric shapes

Circle

Radius = n
Diameter 40311690
Circumference 126642909.15779
Area 1.2762974236667E+15

Sphere

Radius = n
Volume 3.4299804060435E+22
Surface area 5.105189694667E+15
Circumference 126642909.15779

Square

Length = n
Perimeter 80623380
Area 406258087664025
Diagonal 28504669.36009

Cube

Length = n
Surface area 2437548525984150
Volume 8.1884750449525E+21
Space diagonal 34910947.609483

Equilateral Triangle

Length = n
Perimeter 60467535
Area 1.7591491220497E+14
Altitude 17455473.804742

Triangular Pyramid

Length = n
Surface area 1.7591491220497E+14
Volume 9.6502103864379E+20
Height 9501556.4533633