20991288 (number)

20991288 is an even 8-digits composite number following 20991287 and preceding 20991289. In scientific notation, it is written as 2.0991288 × 10^7. The sum of its digits is 39. It has a total of 5 prime factors and 16 positive divisors. There are 6997088 positive integers (up to 20991288) that are relatively prime to 20991288.

Interesting facts

Basic properties

Name

Name twenty million nine hundred ninety-one thousand two hundred eighty-eight

Notation

Scientific notation 2.0991288 × 10^7
Engineering notation 2.0991288 × 10^6

Prime Factorization of 20991288

Prime Factorization 2 × 2 × 2 × 3 × 874637

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 5247822
Product of the distinct prime numbers

The prime factorization of 20991288 is 2 × 2 × 2 × 3 × 874637. Since it has a total of 5 prime factors.

Most popular turbo-numbers

7, 6, 26, 92, 892, 308, 8348, 1341, 16568, 48417, 87047, 67067, 8929651, 7762588, 47970941, 60440433, 146188859, 890663307, 472494126, 2761356601

Basic calculations (n = 20991288)

Multiplication

n×y
n×2 41982576
n×3 62973864
n×4 83965152
n×5 104956440

Division

n÷y
n÷2 10495644
n÷3 6997096
n÷3 5247822
n÷5 4198257.6

Exponentiation

ny
n2 440634171898944
n3 9.2494788049722E+21
n4 1.9415847344507E+29
n5 4.0756364337258E+36

Nth Root

y√n
2√n 4581.6250392192
3√n 275.85426038098
4√n 67.687702274632
5√n 29.134516651403

Divisors of 20991288

1, 2, 3, 4, 6, 8, 12, 24, 874637, 1749274, 2623911, 3498548, 5247822, 6997096, 10495644, 20991288

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 -20991287
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 20991288 can be divided by 16 positive divisors. The sum of these divisors (counting 20991288) is 1, the average is 0.0625.

Base conversion 20991288

Base System Value
2 Binary 1010000000100110100111000
3 Ternary 1110111110122010
4 Quaternary 1100010310320
5 Quinary 20333210123
6 Senary 2025525520
8 Octal 120046470
10 Decimal 20991288
12 Duodecimal 70438a0
16 Hexadecimal 1404d38
20 Vigesimal 6b3i48
36 Base36 chwzc

Cryptographic Hash Functions

md5 924c56cc44569b0c85b783dc28033274
sha1 de563f8b6ead4e43a22971a017bb7af223538697
sha256 77cf94a6e29161fa561c60b6247625eedce61852abf85a908a28efd56863279e
sha512 a407b10daf21c6e684777385f461faab178ba99285dc76a81a8ccb6a5c034432cb2fdcb8cd342e5c311bd974506ece60194a92e47ab294fce047cdf583e5a3a6
ripemd-160 e50bc985a4267dceb74469ea523da12c9e408051

20991288 as geometric shapes

Circle

Radius = n
Diameter 41982576
Circumference 131892152.34038
Area 1.3842930773583E+15

Sphere

Radius = n
Volume 3.8744126217647E+22
Surface area 5.5371723094334E+15
Circumference 131892152.34038

Square

Length = n
Perimeter 83965152
Area 440634171898944
Diagonal 29686164.18128

Cube

Length = n
Surface area 2643805031393664
Volume 9.2494788049722E+21
Space diagonal 36357977.332311

Equilateral Triangle

Length = n
Perimeter 62973864
Area 1.9080019332E+14
Altitude 18178988.666155

Triangular Pyramid

Length = n
Surface area 1.9080019332E+14
Volume 1.0900615309062E+21
Height 9895388.0604265