20287890 (number)

20287890 is an even 8-digits composite number following 20287889 and preceding 20287891. In scientific notation, it is written as 2.0287890 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 4637088 positive integers (up to 20287890) that are relatively prime to 20287890.

Interesting facts

Basic properties

Name

Name twenty million two hundred eighty-seven thousand eight hundred ninety

Notation

Scientific notation 2.0287890 × 10^7
Engineering notation 2.0287890 × 10^6

Prime Factorization of 20287890

Prime Factorization 2 × 45 × 7 × 32203

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20287890
Product of the distinct prime numbers

The prime factorization of 20287890 is 2 × 45 × 7 × 32203. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 2, 27, 41, 463, 850, 6848, 1337, 32353, 19046, 420907, 875292, 5088367, 8819227, 47987007, 56005262, 845892111, 687913159, 4736858059, 2922594962

Basic calculations (n = 20287890)

Multiplication

n×y
n×2 40575780
n×3 60863670
n×4 81151560
n×5 101439450

Division

n÷y
n÷2 10143945
n÷3 6762630
n÷3 5071972.5
n÷5 4057578

Exponentiation

ny
n2 411598480652100
n3 8.3504646996369E+21
n4 1.6941330927512E+29
n5 3.4370385831096E+36

Nth Root

y√n
2√n 4504.2080324958
3√n 272.73798473077
4√n 67.113396818339
5√n 28.936591695345

Divisors of 20287890

1, 2, 7, 14, 45, 90, 315, 630, 32203, 64406, 225421, 450842, 1449135, 2898270, 10143945, 20287890

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 -20287889
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 20287890 can be divided by 16 positive divisors. The sum of these divisors (counting 20287890) is 1, the average is 0.0625.

Base conversion 20287890

Base System Value
2 Binary 1001101011001000110010010
3 Ternary 1102011201202100
4 Quaternary 1031121012102
5 Quinary 20143203030
6 Senary 2002501230
8 Octal 115310622
10 Decimal 20287890
12 Duodecimal 6964816
16 Hexadecimal 1359192
20 Vigesimal 66fjea
36 Base36 c2u8i

Cryptographic Hash Functions

md5 1fed945a87f0959b2f6fee4caee47033
sha1 b445e592ab4f927be94c46ef7ca7dbf3e1d3bfea
sha256 87bcea1d8a6aeac6f3d2503d3eeb8dd5180cb708313978ae4b0bf503f07d534f
sha512 fcde4961107dd7594c7c17065f785a6d3f5cf690c944621f5344b2388a50977a9a3f2aec15ebb8112950d88f381172e60200bafdd02001b74f7f8d762da293f5
ripemd-160 09099ae4874ed5ef83cc9e55c79c99b7b0d3ea1d

20287890 as geometric shapes

Circle

Radius = n
Diameter 40575780
Circumference 127472572.36168
Area 1.2930747630454E+15

Sphere

Radius = n
Volume 3.4978344739254E+22
Surface area 5.1722990521814E+15
Circumference 127472572.36168

Square

Length = n
Perimeter 81151560
Area 411598480652100
Diagonal 28691409.189933

Cube

Length = n
Surface area 2469590883912600
Volume 8.3504646996369E+21
Space diagonal 35139656.258369

Equilateral Triangle

Length = n
Perimeter 60863670
Area 1.782273702019E+14
Altitude 17569828.129184

Triangular Pyramid

Length = n
Surface area 1.782273702019E+14
Volume 9.8411170252869E+20
Height 9563803.0633112