20408728 (number)

20408728 is an even 8-digits composite number following 20408727 and preceding 20408729. In scientific notation, it is written as 2.0408728 × 10^7. The sum of its digits is 31. It has a total of 5 prime factors and 16 positive divisors. There are 9760608 positive integers (up to 20408728) that are relatively prime to 20408728.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0408728 × 10^7
Engineering notation 2.0408728 × 10^6

Prime Factorization of 20408728

Prime Factorization 2 × 2 × 2 × 23 × 110917

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 5102182
Product of the distinct prime numbers

The prime factorization of 20408728 is 2 × 2 × 2 × 23 × 110917. Since it has a total of 5 prime factors.

Most popular turbo-numbers

4, 10, 22, 7, 190, 903, 6272, 9219, 84451, 83596, 60592, 607906, 4423328, 8768355, 93773973, 43504547, 731667154, 484014325, 4544262151, 2950166184

Basic calculations (n = 20408728)

Multiplication

n×y
n×2 40817456
n×3 61226184
n×4 81634912
n×5 102043640

Division

n÷y
n÷2 10204364
n÷3 6802909.3333333
n÷3 5102182
n÷5 4081745.6

Exponentiation

ny
n2 416516178577984
n3 8.5005653961975E+21
n4 1.7348572701721E+29
n5 3.5406230145764E+36

Nth Root

y√n
2√n 4517.6020187706
3√n 273.27840392669
4√n 67.213108980098
5√n 28.970980080639

Divisors of 20408728

1, 2, 4, 8, 23, 46, 92, 184, 110917, 221834, 443668, 887336, 2551091, 5102182, 10204364, 20408728

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 -20408727
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 20408728 can be divided by 16 positive divisors. The sum of these divisors (counting 20408728) is 1, the average is 0.0625.

Base conversion 20408728

Base System Value
2 Binary 1001101110110100110011000
3 Ternary 1102101212111211
4 Quaternary 1031312212120
5 Quinary 20211034403
6 Senary 2005232504
8 Octal 115664630
10 Decimal 20408728
12 Duodecimal 6a02734
16 Hexadecimal 1376998
20 Vigesimal 67b1g8
36 Base36 c5fh4

Cryptographic Hash Functions

md5 1b1262f65cb01a699085a3131c31d8d7
sha1 c70b67a296dc6509df0bbf5ab3b5796b0270d3c4
sha256 674b4104514409525d86ee5df1e4a04df382595ef130e55b9ba204830189f451
sha512 6563e8342e224342726cabd8160d9e6e633c8187af59d15256cbc655294e07d1c9e39780b7be2c069d2c1161d9cdc0c5e9295fae5ed71e871fc25a70bc453c3d
ripemd-160 425a4d36fb8ff85f1a79f30979e5d60ec6680d41

20408728 as geometric shapes

Circle

Radius = n
Diameter 40817456
Circumference 128231819.90782
Area 1.3085241667219E+15

Sphere

Radius = n
Volume 3.5607085066738E+22
Surface area 5.2340966668876E+15
Circumference 128231819.90782

Square

Length = n
Perimeter 81634912
Area 416516178577984
Diagonal 28862299.928384

Cube

Length = n
Surface area 2499097071467904
Volume 8.5005653961975E+21
Space diagonal 35348953.813854

Equilateral Triangle

Length = n
Perimeter 61226184
Area 1.8035679586787E+14
Altitude 17674476.906927

Triangular Pyramid

Length = n
Surface area 1.8035679586787E+14
Volume 1.0018012392618E+21
Height 9620766.6427945