20121728 (number)

20121728 is an even 8-digits composite number following 20121727 and preceding 20121729. In scientific notation, it is written as 2.0121728 × 10^7. The sum of its digits is 23. It has a total of 10 prime factors and 64 positive divisors. There are 8832000 positive integers (up to 20121728) that are relatively prime to 20121728.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0121728 × 10^7
Engineering notation 2.0121728 × 10^6

Prime Factorization of 20121728

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 2 × 11 × 31 × 461

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 10
Total number of prime factors
rad Radical 314402
Product of the distinct prime numbers

The prime factorization of 20121728 is 2 × 2 × 2 × 2 × 2 × 2 × 2 × 11 × 31 × 461. Since it has a total of 10 prime factors.

Most popular turbo-numbers

9, 3, 44, 42, 455, 220, 6184, 1363, 9573, 61483, 715991, 929805, 11376, 294333, 23599288, 39727531, 22898196, 943962834, 3149539245, 3823109135

Basic calculations (n = 20121728)

Multiplication

n×y
n×2 40243456
n×3 60365184
n×4 80486912
n×5 100608640

Division

n÷y
n÷2 10060864
n÷3 6707242.6666667
n÷3 5030432
n÷5 4024345.6

Exponentiation

ny
n2 404883937705984
n3 8.1469644660888E+21
n4 1.639310030123E+29
n5 3.2985750533807E+36

Nth Root

y√n
2√n 4485.7249135452
3√n 271.99134920584
4√n 66.975554596772
5√n 28.889036313906

Divisors of 20121728

1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 62, 64, 88, 124, 128, 176, 248, 341, 352, 461, 496, 682, 704, 922, 992, 1364, 1408, 1844, 1984, 2728, 3688, 3968, 5071, 5456, 7376, 10142, 10912, 14291, 14752, 20284, 21824, 28582, 29504, 40568, 43648, 57164, 59008, 81136, 114328, 157201, 162272, 228656, 314402, 324544, 457312, 628804, 649088, 914624, 1257608, 1829248, 2515216, 5030432, 10060864, 20121728

64 divisors

τ Total Divisors 64
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20121727
Sum of the proper positive divisors of n
A Arithmetic Mean 0.015625
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 64
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20121728 can be divided by 64 positive divisors. The sum of these divisors (counting 20121728) is 1, the average is 0.015625.

Base conversion 20121728

Base System Value
2 Binary 1001100110000100010000000
3 Ternary 1101212021211012
4 Quaternary 1030300202000
5 Quinary 20122343403
6 Senary 1555140052
8 Octal 114604200
10 Decimal 20121728
12 Duodecimal 68a4628
16 Hexadecimal 1330880
20 Vigesimal 65f468
36 Base36 bza0w

Cryptographic Hash Functions

md5 a156111edc5c021c698488fe5e090655
sha1 4b84abfa5e7fc1ad84f3b63b5ef4a1702cf9c413
sha256 58cff120d47dd96b0d1d32c58bd950a7147e7a6556856f4bfdc2ff3798fdf28a
sha512 c55c7458d0cf513304c9d7137325d0ec23942a307f2f03138d8c1fcf67b45afaae917116597f243529863b137f0da6b7f309cfd332df472f325a3347f55a15a1
ripemd-160 cea9ac65af847aacddeeeb274542660f8a453794

20121728 as geometric shapes

Circle

Radius = n
Diameter 40243456
Circumference 126428545.72466
Area 1.2719804042536E+15

Sphere

Radius = n
Volume 3.4125924954295E+22
Surface area 5.0879216170145E+15
Circumference 126428545.72466

Square

Length = n
Perimeter 80486912
Area 404883937705984
Diagonal 28456420.635982

Cube

Length = n
Surface area 2429303626235904
Volume 8.1469644660888E+21
Space diagonal 34851855.232081

Equilateral Triangle

Length = n
Perimeter 60365184
Area 1.7531988781883E+14
Altitude 17425927.616041

Triangular Pyramid

Length = n
Surface area 1.7531988781883E+14
Volume 9.6012897000953E+20
Height 9485473.5453275