20805420 (number)

20805420 is an even 8-digits composite number following 20805419 and preceding 20805421. In scientific notation, it is written as 2.0805420 × 10^7. The sum of its digits is 21. It has a total of 6 prime factors and 48 positive divisors. There are 5503680 positive integers (up to 20805420) that are relatively prime to 20805420.

Interesting facts

Basic properties

Name

Name twenty million eight hundred five thousand four hundred twenty

Notation

Scientific notation 2.0805420 × 10^7
Engineering notation 2.0805420 × 10^6

Prime Factorization of 20805420

Prime Factorization 2 × 2 × 3 × 5 × 131 × 2647

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 10402710
Product of the distinct prime numbers

The prime factorization of 20805420 is 2 × 2 × 3 × 5 × 131 × 2647. Since it has a total of 6 prime factors.

Most popular turbo-numbers

9, 5, 21, 2, 167, 881, 6871, 1235, 94643, 27161, 811075, 992456, 8712723, 7172131, 13529739, 92275942, 653138190, 455212423, 7336103045, 6523254808

Basic calculations (n = 20805420)

Multiplication

n×y
n×2 41610840
n×3 62416260
n×4 83221680
n×5 104027100

Division

n÷y
n÷2 10402710
n÷3 6935140
n÷3 5201355
n÷5 4161084

Exponentiation

ny
n2 432865501376400
n3 9.0059485596466E+21
n4 1.8737254228184E+29
n5 3.8983644386415E+36

Nth Root

y√n
2√n 4561.2958685005
3√n 275.03765875459
4√n 67.537366461097
5√n 29.082738443198

Divisors of 20805420

1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 131, 262, 393, 524, 655, 786, 1310, 1572, 1965, 2620, 2647, 3930, 5294, 7860, 7941, 10588, 13235, 15882, 26470, 31764, 39705, 52940, 79410, 158820, 346757, 693514, 1040271, 1387028, 1733785, 2080542, 3467570, 4161084, 5201355, 6935140, 10402710, 20805420

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20805419
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20805420 can be divided by 48 positive divisors. The sum of these divisors (counting 20805420) is 1, the average is 0.020833333333333.

Base conversion 20805420

Base System Value
2 Binary 1001111010111011100101100
3 Ternary 1110011000200010
4 Quaternary 1033113130230
5 Quinary 20311233140
6 Senary 2021533220
8 Octal 117273454
10 Decimal 20805420
12 Duodecimal 6b74210
16 Hexadecimal 13d772c
20 Vigesimal 6a0db0
36 Base36 cdxkc

Cryptographic Hash Functions

md5 5b1b17a7958014ec5ff07988168fdb10
sha1 11bbb994497645275d33728a4a15d7efb15c267b
sha256 a5037b917a5f3b93549f2ebdf5873b3deef5b2225b6795bce40186796b767573
sha512 98fe66b44e95e4354bfa461b4e6ad97f94758e544ebd8880926edbb7eb291322ccb6a67dfcde09eafa490aa4c06090bdebf69ae5d53f7a8b3ca0870c07437168
ripemd-160 34a6c18bca9dd70899cac957011393c3c8200865

20805420 as geometric shapes

Circle

Radius = n
Diameter 41610840
Circumference 130724309.2537
Area 1.3598870791166E+15

Sphere

Radius = n
Volume 3.7724029111458E+22
Surface area 5.4395483164662E+15
Circumference 130724309.2537

Square

Length = n
Perimeter 83221680
Area 432865501376400
Diagonal 29423307.134868

Cube

Length = n
Surface area 2597193008258400
Volume 9.0059485596466E+21
Space diagonal 36036044.51281

Equilateral Triangle

Length = n
Perimeter 62416260
Area 1.8743626030693E+14
Altitude 18018022.256405

Triangular Pyramid

Length = n
Surface area 1.8743626030693E+14
Volume 1.0613612162572E+21
Height 9807769.0449561