20721830 (number)

20721830 is an even 8-digits composite number following 20721829 and preceding 20721831. In scientific notation, it is written as 2.0721830 × 10^7. The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors. There are 8112192 positive integers (up to 20721830) that are relatively prime to 20721830.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0721830 × 10^7
Engineering notation 2.0721830 × 10^6

Prime Factorization of 20721830

Prime Factorization 2 × 5 × 47 × 44089

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20721830
Product of the distinct prime numbers

The prime factorization of 20721830 is 2 × 5 × 47 × 44089. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 5, 57, 91, 625, 68, 8773, 9814, 43656, 25874, 2152, 286501, 6386746, 1554405, 24548511, 63672027, 369231934, 927355103, 240950350, 7817253699

Basic calculations (n = 20721830)

Multiplication

n×y
n×2 41443660
n×3 62165490
n×4 82887320
n×5 103609150

Division

n÷y
n÷2 10360915
n÷3 6907276.6666667
n÷3 5180457.5
n÷5 4144366

Exponentiation

ny
n2 429394238548900
n3 8.8978344141898E+21
n4 1.8437941209899E+29
n5 3.8206788330152E+36

Nth Root

y√n
2√n 4552.1236802178
3√n 274.66882447431
4√n 67.469427744852
5√n 29.059331634708

Divisors of 20721830

1, 2, 5, 10, 47, 94, 235, 470, 44089, 88178, 220445, 440890, 2072183, 4144366, 10360915, 20721830

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 -20721829
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 20721830 can be divided by 16 positive divisors. The sum of these divisors (counting 20721830) is 1, the average is 0.0625.

Base conversion 20721830

Base System Value
2 Binary 1001111000011000010100110
3 Ternary 1102222210000012
4 Quaternary 1033003002212
5 Quinary 20301044310
6 Senary 2020050222
8 Octal 117030246
10 Decimal 20721830
12 Duodecimal 6b33972
16 Hexadecimal 13c30a6
20 Vigesimal 69a4ba
36 Base36 cc52e

Cryptographic Hash Functions

md5 218ea05a777c2d996dd0a90e39b4117d
sha1 7027d2ca9099ea4a483132c6529734c5f8ca6f5c
sha256 2df10e5254aecf85184898f159624234270a8de482b55040b26f93b347da3299
sha512 acec50c80db8ea4fe84d9bc6517ad43892c77501f66775c185d1d52c459df95125863dd7793fc91fc2323223e7afb93b645471ef0705cc92d85f326553a57ecb
ripemd-160 2ff38838c8eb3556b33b625a57ca1f51fdb3c47e

20721830 as geometric shapes

Circle

Radius = n
Diameter 41443660
Circumference 130199097.79387
Area 1.348981785319E+15

Sphere

Radius = n
Volume 3.7271161637969E+22
Surface area 5.395927141276E+15
Circumference 130199097.79387

Square

Length = n
Perimeter 82887320
Area 429394238548900
Diagonal 29305093.02319

Cube

Length = n
Surface area 2576365431293400
Volume 8.8978344141898E+21
Space diagonal 35891262.385805

Equilateral Triangle

Length = n
Perimeter 62165490
Area 1.8593315941101E+14
Altitude 17945631.192902

Triangular Pyramid

Length = n
Surface area 1.8593315941101E+14
Volume 1.0486198420248E+21
Height 9768364.3410632