20721828 (number)

20721828 is an even 8-digits composite number following 20721827 and preceding 20721829. In scientific notation, it is written as 2.0721828 × 10^7. The sum of its digits is 30. It has a total of 5 prime factors and 24 positive divisors. There are 6852384 positive integers (up to 20721828) that are relatively prime to 20721828.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0721828 × 10^7
Engineering notation 2.0721828 × 10^6

Prime Factorization of 20721828

Prime Factorization 2 × 2 × 3 × 127 × 13597

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10360914
Product of the distinct prime numbers

The prime factorization of 20721828 is 2 × 2 × 3 × 127 × 13597. Since it has a total of 5 prime factors.

Most popular turbo-numbers

8, 4, 36, 29, 401, 192, 7515, 4993, 41944, 17210, 707736, 485293, 965984, 6931263, 178418, 89025077, 922042464, 498950769, 7601997899, 8840829959

Basic calculations (n = 20721828)

Multiplication

n×y
n×2 41443656
n×3 62165484
n×4 82887312
n×5 103609140

Division

n÷y
n÷2 10360914
n÷3 6907276
n÷3 5180457
n÷5 4144365.6

Exponentiation

ny
n2 429394155661584
n3 8.8978318378246E+21
n4 1.8437934091632E+29
n5 3.8206769892214E+36

Nth Root

y√n
2√n 4552.1234605401
3√n 274.66881563761
4√n 67.469426116873
5√n 29.059331073767

Divisors of 20721828

1, 2, 3, 4, 6, 12, 127, 254, 381, 508, 762, 1524, 13597, 27194, 40791, 54388, 81582, 163164, 1726819, 3453638, 5180457, 6907276, 10360914, 20721828

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20721827
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20721828 can be divided by 24 positive divisors. The sum of these divisors (counting 20721828) is 1, the average is 0.041666666666667.

Base conversion 20721828

Base System Value
2 Binary 1001111000011000010100100
3 Ternary 1102222210000010
4 Quaternary 1033003002210
5 Quinary 20301044303
6 Senary 2020050220
8 Octal 117030244
10 Decimal 20721828
12 Duodecimal 6b33970
16 Hexadecimal 13c30a4
20 Vigesimal 69a4b8
36 Base36 cc52c

Cryptographic Hash Functions

md5 2160d5bcac595a15eadcf0f046558efc
sha1 4a01d4b75b64450e5d4ea1440ccb2a5cd110ee73
sha256 f5f97886ff8d4fdcd2f65c38641b44b76b74594667029b7cbb58d18cb44a13e2
sha512 82c3b4962c76eb5dd68566af83841300d1274b26cf31e9e62871f168a1f43b19bbe6b995c0d872acdb9385f8ed37e8d1e03fa1d7ea44ea0152ab3f0fc9ffd499
ripemd-160 ba87f58c5c15e7f3d5f99716b2b8cfd4622855a7

20721828 as geometric shapes

Circle

Radius = n
Diameter 41443656
Circumference 130199085.2275
Area 1.3489815249208E+15

Sphere

Radius = n
Volume 3.7271150846116E+22
Surface area 5.3959260996833E+15
Circumference 130199085.2275

Square

Length = n
Perimeter 82887312
Area 429394155661584
Diagonal 29305090.194763

Cube

Length = n
Surface area 2576364933969504
Volume 8.8978318378246E+21
Space diagonal 35891258.921703

Equilateral Triangle

Length = n
Perimeter 62165484
Area 1.8593312351975E+14
Altitude 17945629.460852

Triangular Pyramid

Length = n
Surface area 1.8593312351975E+14
Volume 1.0486195383972E+21
Height 9768363.3982542