20405729 (number)

20405729 is an odd 8-digits composite number following 20405728 and preceding 20405730. In scientific notation, it is written as 2.0405729 × 10^7. The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors. There are 19166976 positive integers (up to 20405729) that are relatively prime to 20405729.

Interesting facts

Basic properties

Name

Name twenty million four hundred five thousand seven hundred twenty-nine

Notation

Scientific notation 2.0405729 × 10^7
Engineering notation 2.0405729 × 10^6

Prime Factorization of 20405729

Prime Factorization 17 × 1693 × 709

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 20405729
Product of the distinct prime numbers

The prime factorization of 20405729 is 17 × 1693 × 709. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20405729)

Multiplication

n×y
n×2 40811458
n×3 61217187
n×4 81622916
n×5 102028645

Division

n÷y
n÷2 10202864.5
n÷3 6801909.6666667
n÷3 5101432.25
n÷5 4081145.8

Exponentiation

ny
n2 416393776021441
n3 8.4968185507802E+21
n4 1.7338377670939E+29
n5 3.5380223605284E+36

Nth Root

y√n
2√n 4517.2700826937
3√n 273.26501746314
4√n 67.210639653955
5√n 28.970128591251

Divisors of 20405729

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20405728
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20405729 can be divided by 8 positive divisors. The sum of these divisors (counting 20405729) is 1, the average is 0.125.

Base conversion 20405729

Base System Value
2 Binary 1001101110101110111100001
3 Ternary 1102101201101202
4 Quaternary 1031311313201
5 Quinary 20210440404
6 Senary 2005210545
8 Octal 115656741
10 Decimal 20405729
12 Duodecimal 6a00a55
16 Hexadecimal 1375de1
20 Vigesimal 67ae69
36 Base36 c5d5t

Cryptographic Hash Functions

md5 548618c9fb568b39ae3abb27d4035d39
sha1 ea89830a676d443fc9bffdd0aada933a36e09207
sha256 b8f5c919bc3fc85ee0c62c7619183898805feaf85839e1c41e97351b96f4f990
sha512 96b87d56da94f5c7f2077259e4b164bc1e363e1a26f72ec5351d835a5c6dfdc88b8d896a59f94f81f84cc24f3e40f4a819cab6613a22d20f62562809025fe985
ripemd-160 dde9361d624da0328344cbbab689f93d682a6a67

20405729 as geometric shapes

Circle

Radius = n
Diameter 40811458
Circumference 128212976.63509
Area 1.3081396277495E+15

Sphere

Radius = n
Volume 3.5591390317355E+22
Surface area 5.2325585109979E+15
Circumference 128212976.63509

Square

Length = n
Perimeter 81622916
Area 416393776021441
Diagonal 28858058.70191

Cube

Length = n
Surface area 2498362656128646
Volume 8.4968185507802E+21
Space diagonal 35343759.393482

Equilateral Triangle

Length = n
Perimeter 61217187
Area 1.8030379400615E+14
Altitude 17671879.696741

Triangular Pyramid

Length = n
Surface area 1.8030379400615E+14
Volume 1.0013596692947E+21
Height 9619352.9006367