20685728 (number)

20685728 is an even 8-digits composite number following 20685727 and preceding 20685729. In scientific notation, it is written as 2.0685728 × 10^7. The sum of its digits is 38. It has a total of 7 prime factors and 24 positive divisors. There are 8865216 positive integers (up to 20685728) that are relatively prime to 20685728.

Interesting facts

Basic properties

Name

Name twenty million six hundred eighty-five thousand seven hundred twenty-eight

Notation

Scientific notation 2.0685728 × 10^7
Engineering notation 2.0685728 × 10^6

Prime Factorization of 20685728

Prime Factorization 2 × 2 × 2 × 2 × 2 × 7 × 92347

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 1292858
Product of the distinct prime numbers

The prime factorization of 20685728 is 2 × 2 × 2 × 2 × 2 × 7 × 92347. Since it has a total of 7 prime factors.

Most popular turbo-numbers

9, 2, 12, 6, 305, 170, 441, 2946, 24387, 72041, 258916, 52193, 1653577, 7395684, 36337465, 54256378, 420107989, 28176450, 6865041477, 1249639664

Basic calculations (n = 20685728)

Multiplication

n×y
n×2 41371456
n×3 62057184
n×4 82742912
n×5 103428640

Division

n÷y
n÷2 10342864
n÷3 6895242.6666667
n÷3 5171432
n÷5 4137145.6

Exponentiation

ny
n2 427899342889984
n3 8.8514094184009E+21
n4 1.8309784764568E+29
n5 3.787512273784E+36

Nth Root

y√n
2√n 4548.1565496363
3√n 274.5092205179
4√n 67.440021868593
5√n 29.049199017451

Divisors of 20685728

1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 92347, 184694, 369388, 646429, 738776, 1292858, 1477552, 2585716, 2955104, 5171432, 10342864, 20685728

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20685727
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20685728 can be divided by 24 positive divisors. The sum of these divisors (counting 20685728) is 1, the average is 0.041666666666667.

Base conversion 20685728

Base System Value
2 Binary 1001110111010001110100000
3 Ternary 1102220221111002
4 Quaternary 1032322032200
5 Quinary 20243420403
6 Senary 2015211132
8 Octal 116721640
10 Decimal 20685728
12 Duodecimal 6b16aa8
16 Hexadecimal 13ba3a0
20 Vigesimal 695e68
36 Base36 cbd7k

Cryptographic Hash Functions

md5 839a996d1257ddde1dd6b542f48f2449
sha1 7f46dd501009486776a38981f0b17b7253fae332
sha256 bab39b62f17bd911c3858d9eb46af3b16b503c510d47b61d168d4e5c050950d1
sha512 b5b8dc0aa63a33bda6058803f50fc93e9c864bb1d568d0da2ae7b07a82f008c9ddc42a0f5cb3101617509859035cd125b0cd93999ff51af4ffd96595274fc837
ripemd-160 f7c33f50b530b9fe0c60511679b7d23c38696b15

20685728 as geometric shapes

Circle

Radius = n
Diameter 41371456
Circumference 129972262.23791
Area 1.3442854320991E+15

Sphere

Radius = n
Volume 3.7076697070352E+22
Surface area 5.3771417283963E+15
Circumference 129972262.23791

Square

Length = n
Perimeter 82742912
Area 427899342889984
Diagonal 29254037.085161

Cube

Length = n
Surface area 2567396057339904
Volume 8.8514094184009E+21
Space diagonal 35828731.88755

Equilateral Triangle

Length = n
Perimeter 62057184
Area 1.852858506027E+14
Altitude 17914365.943775

Triangular Pyramid

Length = n
Surface area 1.852858506027E+14
Volume 1.0431486038016E+21
Height 9751345.6950536