20178728 (number)

20178728 is an even 8-digits composite number following 20178727 and preceding 20178729. In scientific notation, it is written as 2.0178728 × 10^7. The sum of its digits is 35. It has a total of 6 prime factors and 32 positive divisors. There are 9081600 positive integers (up to 20178728) that are relatively prime to 20178728.

Interesting facts

Basic properties

Name

Name twenty million one hundred seventy-eight thousand seven hundred twenty-eight

Notation

Scientific notation 2.0178728 × 10^7
Engineering notation 2.0178728 × 10^6

Prime Factorization of 20178728

Prime Factorization 2 × 2 × 2 × 17 × 23 × 6451

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 5044682
Product of the distinct prime numbers

The prime factorization of 20178728 is 2 × 2 × 2 × 17 × 23 × 6451. Since it has a total of 6 prime factors.

Most popular turbo-numbers

8, 1, 50, 5, 83, 965, 4559, 34, 87091, 30505, 877975, 280128, 7340437, 5194138, 59165127, 62785275, 367247423, 58946560, 8864248121, 8532298076

Basic calculations (n = 20178728)

Multiplication

n×y
n×2 40357456
n×3 60536184
n×4 80714912
n×5 100893640

Division

n÷y
n÷2 10089364
n÷3 6726242.6666667
n÷3 5044682
n÷5 4035745.6

Exponentiation

ny
n2 407181063697984
n3 8.2163959311123E+21
n4 1.6579641863422E+29
n5 3.3455608349941E+36

Nth Root

y√n
2√n 4492.0739085638
3√n 272.24793569564
4√n 67.022935690432
5√n 28.905384933485

Divisors of 20178728

1, 2, 4, 8, 17, 23, 34, 46, 68, 92, 136, 184, 391, 782, 1564, 3128, 6451, 12902, 25804, 51608, 109667, 148373, 219334, 296746, 438668, 593492, 877336, 1186984, 2522341, 5044682, 10089364, 20178728

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20178727
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20178728 can be divided by 32 positive divisors. The sum of these divisors (counting 20178728) is 1, the average is 0.03125.

Base conversion 20178728

Base System Value
2 Binary 1001100111110011100101000
3 Ternary 1101222012000022
4 Quaternary 1030332130220
5 Quinary 20131204403
6 Senary 2000300012
8 Octal 114763450
10 Decimal 20178728
12 Duodecimal 6911608
16 Hexadecimal 133e728
20 Vigesimal 6626g8
36 Base36 c0i08

Cryptographic Hash Functions

md5 cf7f34d39b5d5651824220da59f868e5
sha1 f1fedbda04b6b4546db7873e6b9d36579a97a815
sha256 fa6877b8732cab84fabc943913b6295738bf69ec41949527e56604c52c769f13
sha512 0831839eddb9b053cbb471552134e730c34043ad8b73ed23a9ca46d7a078c9d33221f95c136ddaa1a8df8ed7af51c992e9959c85fe1dd249c681795180f1d126
ripemd-160 632cf6f9ccf0916b0f01d51bb0e60a7d4e82483d

20178728 as geometric shapes

Circle

Radius = n
Diameter 40357456
Circumference 126786687.28717
Area 1.2791970383945E+15

Sphere

Radius = n
Volume 3.441675879489E+22
Surface area 5.1167881535779E+15
Circumference 126786687.28717

Square

Length = n
Perimeter 80714912
Area 407181063697984
Diagonal 28537030.809038

Cube

Length = n
Surface area 2443086382187904
Volume 8.2163959311123E+21
Space diagonal 34950582.128113

Equilateral Triangle

Length = n
Perimeter 60536184
Area 1.7631457255121E+14
Altitude 17475291.064056

Triangular Pyramid

Length = n
Surface area 1.7631457255121E+14
Volume 9.6831154663384E+20
Height 9512343.6030126