20809968 (number)

20809968 is an even 8-digits composite number following 20809967 and preceding 20809969. In scientific notation, it is written as 2.0809968 × 10^7. The sum of its digits is 42. It has a total of 7 prime factors and 40 positive divisors. There are 6884544 positive integers (up to 20809968) that are relatively prime to 20809968.

Interesting facts

Basic properties

Name

Name twenty million eight hundred nine thousand nine hundred sixty-eight

Notation

Scientific notation 2.0809968 × 10^7
Engineering notation 2.0809968 × 10^6

Prime Factorization of 20809968

Prime Factorization 2 × 2 × 2 × 2 × 3 × 139 × 3119

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 2601246
Product of the distinct prime numbers

The prime factorization of 20809968 is 2 × 2 × 2 × 2 × 3 × 139 × 3119. Since it has a total of 7 prime factors.

Most popular turbo-numbers

9, 10, 94, 78, 400, 117, 3139, 8739, 24716, 84597, 473154, 179114, 6225223, 6890437, 68927301, 97656358, 262573113, 811966543, 2922931765, 6227030157

Basic calculations (n = 20809968)

Multiplication

n×y
n×2 41619936
n×3 62429904
n×4 83239872
n×5 104049840

Division

n÷y
n÷2 10404984
n÷3 6936656
n÷3 5202492
n÷5 4161993.6

Exponentiation

ny
n2 433054768161024
n3 9.0118558676783E+21
n4 1.87536432227E+29
n5 3.902627153478E+36

Nth Root

y√n
2√n 4561.7943837924
3√n 275.05769808628
4√n 67.541057023061
5√n 29.084009811241

Divisors of 20809968

1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 139, 278, 417, 556, 834, 1112, 1668, 2224, 3119, 3336, 6238, 6672, 9357, 12476, 18714, 24952, 37428, 49904, 74856, 149712, 433541, 867082, 1300623, 1734164, 2601246, 3468328, 5202492, 6936656, 10404984, 20809968

40 divisors

τ Total Divisors 40
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20809967
Sum of the proper positive divisors of n
A Arithmetic Mean 0.025
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 40
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20809968 can be divided by 40 positive divisors. The sum of these divisors (counting 20809968) is 1, the average is 0.025.

Base conversion 20809968

Base System Value
2 Binary 1001111011000100011110000
3 Ternary 1110011020220120
4 Quaternary 1033120203300
5 Quinary 20311404333
6 Senary 2022010240
8 Octal 117304360
10 Decimal 20809968
12 Duodecimal 6b76980
16 Hexadecimal 13d88f0
20 Vigesimal 6a14i8
36 Base36 ce12o

Cryptographic Hash Functions

md5 45b021a3b5fff172794faa5e5c864bc6
sha1 b98be3902b5fa56a07f4457179a7fe063558652a
sha256 4d33980cf95558a34cd9b532e70e7c396f71b3192cd1aaf1dae009568d56c0a7
sha512 0e371c6dd5d4d569cbc2845aad80faa1b9179c060fec0bdc9afb312d6e63f2cb2f084e533d4450de322621dcfd6f6fd94e012eb9db5af4a83bb7c0af40c47a03
ripemd-160 2f0336da356a37f587610ecf70dd933b07c3edc4

20809968 as geometric shapes

Circle

Radius = n
Diameter 41619936
Circumference 130752885.18048
Area 1.3604816782567E+15

Sphere

Radius = n
Volume 3.7748773585478E+22
Surface area 5.4419267130268E+15
Circumference 130752885.18048

Square

Length = n
Perimeter 83239872
Area 433054768161024
Diagonal 29429738.97815

Cube

Length = n
Surface area 2598328608966144
Volume 9.0118558676783E+21
Space diagonal 36043921.879882

Equilateral Triangle

Length = n
Perimeter 62429904
Area 1.8751821522871E+14
Altitude 18021960.939941

Triangular Pyramid

Length = n
Surface area 1.8751821522871E+14
Volume 1.0620573991852E+21
Height 9809912.9927167