20807721 (number)

20807721 is an odd 8-digits composite number following 20807720 and preceding 20807722. In scientific notation, it is written as 2.0807721 × 10^7. The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors. There are 12418560 positive integers (up to 20807721) that are relatively prime to 20807721.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0807721 × 10^7
Engineering notation 2.0807721 × 10^6

Prime Factorization of 20807721

Prime Factorization 9 × 11 × 67 × 3137

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20807721
Product of the distinct prime numbers

The prime factorization of 20807721 is 9 × 11 × 67 × 3137. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 6, 43, 61, 973, 627, 8074, 980, 98899, 1963, 704157, 924247, 7217349, 4299893, 96272043, 30657069, 331209556, 344866272, 6968923008, 3289283537

Basic calculations (n = 20807721)

Multiplication

n×y
n×2 41615442
n×3 62423163
n×4 83230884
n×5 104038605

Division

n÷y
n÷2 10403860.5
n÷3 6935907
n÷3 5201930.25
n÷5 4161544.2

Exponentiation

ny
n2 432961253213841
n3 9.008936960684E+21
n4 1.874554467845E+29
n5 3.9005206366222E+36

Nth Root

y√n
2√n 4561.5480924791
3√n 275.0477977524
4√n 67.539233727361
5√n 29.083381702703

Divisors of 20807721

1, 9, 11, 67, 99, 603, 737, 3137, 6633, 28233, 34507, 210179, 310563, 1891611, 2311969, 20807721

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 -20807720
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 20807721 can be divided by 16 positive divisors. The sum of these divisors (counting 20807721) is 1, the average is 0.0625.

Base conversion 20807721

Base System Value
2 Binary 1001111011000000000101001
3 Ternary 1110011010211100
4 Quaternary 1033120000221
5 Quinary 20311321341
6 Senary 2021552013
8 Octal 117300051
10 Decimal 20807721
12 Duodecimal 6b75609
16 Hexadecimal 13d8029
20 Vigesimal 6a0j61
36 Base36 cdzc9

Cryptographic Hash Functions

md5 5d7a77746521704a427a0be8657554f7
sha1 b5aca9020dafcc88afd93dd9e357e0cd35b8e9fc
sha256 94ae773f69e412f129c006dc85240a8772704b2b6dafa106f1901b93ad31428a
sha512 51c6dc0e4df95910b16001bc9c08db6058e8698f319b02531af5bf89c3a105ec16cd044e3ef91f47c4e7971d8d9005adb92001043d4423c1d3482dca6d6ce547
ripemd-160 10bef054c781a0d3ced1dc5f86bdffcaf65d97c7

20807721 as geometric shapes

Circle

Radius = n
Diameter 41615442
Circumference 130738766.86309
Area 1.3601878923856E+15

Sphere

Radius = n
Volume 3.7736546896451E+22
Surface area 5.4407515695425E+15
Circumference 130738766.86309

Square

Length = n
Perimeter 83230884
Area 432961253213841
Diagonal 29426561.240275

Cube

Length = n
Surface area 2597767519283046
Volume 9.008936960684E+21
Space diagonal 36040029.961718

Equilateral Triangle

Length = n
Perimeter 62423163
Area 1.8747772206877E+14
Altitude 18020014.980859

Triangular Pyramid

Length = n
Surface area 1.8747772206877E+14
Volume 1.061713402697E+21
Height 9808853.7467585