20804721 (number)

20804721 is an odd 8-digits composite number following 20804720 and preceding 20804722. In scientific notation, it is written as 2.0804721 × 10^7. The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors. There are 11508480 positive integers (up to 20804721) that are relatively prime to 20804721.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0804721 × 10^7
Engineering notation 2.0804721 × 10^6

Prime Factorization of 20804721

Prime Factorization 21 × 109 × 149 × 61

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20804721
Product of the distinct prime numbers

The prime factorization of 20804721 is 21 × 109 × 149 × 61. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 4, 78, 71, 162, 325, 7797, 2169, 44437, 68641, 218132, 275671, 8637194, 1253692, 30847764, 36096624, 429831476, 534512997, 2285166269, 6675647525

Basic calculations (n = 20804721)

Multiplication

n×y
n×2 41609442
n×3 62414163
n×4 83218884
n×5 104023605

Division

n÷y
n÷2 10402360.5
n÷3 6934907
n÷3 5201180.25
n÷5 4160944.2

Exponentiation

ny
n2 432836415887841
n3 9.0050408711865E+21
n4 1.8734736291863E+29
n5 3.8977096156079E+36

Nth Root

y√n
2√n 4561.2192448949
3√n 275.03457857201
4√n 67.536799190478
5√n 29.082543021934

Divisors of 20804721

1, 21, 61, 109, 149, 1281, 2289, 3129, 6649, 9089, 16241, 139629, 190869, 341061, 990701, 20804721

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 -20804720
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 20804721 can be divided by 16 positive divisors. The sum of these divisors (counting 20804721) is 1, the average is 0.0625.

Base conversion 20804721

Base System Value
2 Binary 1001111010111010001110001
3 Ternary 1110010222201020
4 Quaternary 1033113101301
5 Quinary 20311222341
6 Senary 2021530053
8 Octal 117272161
10 Decimal 20804721
12 Duodecimal 6b73929
16 Hexadecimal 13d7471
20 Vigesimal 6a0bg1
36 Base36 cdx0x

Cryptographic Hash Functions

md5 41a73d7ecc2bacdf606de379cfdf5db9
sha1 56963e0f963fd45d646921d467f50bd3647451d4
sha256 7364ae0061c0e7c212ebd170ff809cf5659c5af488c82a4cb9ee8f01668cfefd
sha512 8d0623676e81a92be6a4db64037ac0bd08d36f75aee6a1eec26a2bbd16506d40513d43bd5ef33722f4b223841d26f4c2530aecd8f56e1fdf62daec22132f634c
ripemd-160 6ca8fc0a24845732f7a4f28befd751168f61b69a

20804721 as geometric shapes

Circle

Radius = n
Diameter 41609442
Circumference 130719917.30717
Area 1.3597957043594E+15

Sphere

Radius = n
Volume 3.7720226994927E+22
Surface area 5.4391828174375E+15
Circumference 130719917.30717

Square

Length = n
Perimeter 83218884
Area 432836415887841
Diagonal 29422318.599588

Cube

Length = n
Surface area 2597018495327046
Volume 9.0050408711865E+21
Space diagonal 36034833.809295

Equilateral Triangle

Length = n
Perimeter 62414163
Area 1.8742366592094E+14
Altitude 18017416.904648

Triangular Pyramid

Length = n
Surface area 1.8742366592094E+14
Volume 1.0612542441463E+21
Height 9807439.5331961