20405720 (number)

20405720 is an even 8-digits composite number following 20405719 and preceding 20405721. In scientific notation, it is written as 2.0405720 × 10^7. The sum of its digits is 20. It has a total of 6 prime factors and 32 positive divisors. There are 8027520 positive integers (up to 20405720) that are relatively prime to 20405720.

Interesting facts

Basic properties

Name

Name twenty million four hundred five thousand seven hundred twenty

Notation

Scientific notation 2.0405720 × 10^7
Engineering notation 2.0405720 × 10^6

Prime Factorization of 20405720

Prime Factorization 2 × 2 × 2 × 5 × 61 × 8363

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 5101430
Product of the distinct prime numbers

The prime factorization of 20405720 is 2 × 2 × 2 × 5 × 61 × 8363. Since it has a total of 6 prime factors.

Most popular turbo-numbers

4, 9, 25, 54, 589, 684, 8146, 6713, 44051, 73277, 266552, 410636, 27668, 9853318, 71528313, 76025237, 303746554, 201454138, 9894513603, 2726249590

Basic calculations (n = 20405720)

Multiplication

n×y
n×2 40811440
n×3 61217160
n×4 81622880
n×5 102028600

Division

n÷y
n÷2 10202860
n÷3 6801906.6666667
n÷3 5101430
n÷5 4081144

Exponentiation

ny
n2 416393408718400
n3 8.4968073081532E+21
n4 1.7338347082413E+29
n5 3.5380145582653E+36

Nth Root

y√n
2√n 4517.2690865168
3√n 273.26497728839
4√n 67.210632243097
5√n 28.97012603578

Divisors of 20405720

1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 8363, 16726, 33452, 41815, 66904, 83630, 167260, 334520, 510143, 1020286, 2040572, 2550715, 4081144, 5101430, 10202860, 20405720

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 -20405719
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 20405720 can be divided by 32 positive divisors. The sum of these divisors (counting 20405720) is 1, the average is 0.03125.

Base conversion 20405720

Base System Value
2 Binary 1001101110101110111011000
3 Ternary 1102101201101102
4 Quaternary 1031311313120
5 Quinary 20210440340
6 Senary 2005210532
8 Octal 115656730
10 Decimal 20405720
12 Duodecimal 6a00a48
16 Hexadecimal 1375dd8
20 Vigesimal 67ae60
36 Base36 c5d5k

Cryptographic Hash Functions

md5 a982f81a9a5886b1e5eee305699e082d
sha1 62a2e20048f20c98fd6ec46823f51d544e123b17
sha256 57bed4ac23988555a00443ff8df83a65945e7f90ba2863d630ff3e8c392e0959
sha512 b0892375007ecf3fb65cb28c016fd8a16723679a28ff453a33a762030f43b8307a8fb646001ccbcde2f5c051d526df415dd17b74570eea995b2a9a4be4377e9a
ripemd-160 9270e8c136d52bed3098e82f74551c49513b917d

20405720 as geometric shapes

Circle

Radius = n
Diameter 40811440
Circumference 128212920.08642
Area 1.3081384738329E+15

Sphere

Radius = n
Volume 3.559134322435E+22
Surface area 5.2325538953318E+15
Circumference 128212920.08642

Square

Length = n
Perimeter 81622880
Area 416393408718400
Diagonal 28858045.973988

Cube

Length = n
Surface area 2498360452310400
Volume 8.4968073081532E+21
Space diagonal 35343743.805024

Equilateral Triangle

Length = n
Perimeter 61217160
Area 1.8030363495927E+14
Altitude 17671871.902512

Triangular Pyramid

Length = n
Surface area 1.8030363495927E+14
Volume 1.0013583443384E+21
Height 9619348.657996