20991616 is an even 8-digits composite number following 20991615
and preceding 20991617 . In scientific notation, it is written as 2.0991616 × 10^7.
The sum of its digits is 34. It has a total of 8 prime factors and 16 positive divisors.
There are 10495744 positive integers (up to 20991616) that are relatively prime to 20991616.
20991616 has 16 divisors, whose sum is 41819490
The reverse of 20991616 is 61619902
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million nine hundred ninety-one thousand six hundred sixteen
Scientific notation
2.0991616 × 10^7
Engineering notation
2.0991616 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 2 × 2 × 163997
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
8
Total number of prime factors
rad
Radical
327994
Product of the distinct prime numbers
The prime factorization of 20991616 is 2 × 2 × 2 × 2 × 2 × 2 × 2 × 163997.
Since it has a total of 8 prime factors.
10 , 5 , 84 , 70 , 32 , 622 , 4377 , 5433 , 44794 , 70316 , 829168 , 484392 , 3082621 , 7636782 , 57893624 , 68189976 , 997553504 , 137259312 , 5253857102 , 2063336727
n×2
41983232
n×3
62974848
n×4
83966464
n×5
104958080
n÷2
10495808
n÷3
6997205.3333333
n÷3
5247904
n÷5
4198323.2
n2
440647942291456
n3
9.2499123957724E+21
n4
1.9417060904569E+29
n5
4.0759548635733E+36
2 √n
4581.660834239
3 √n
275.85569716317
4 √n
67.687966687138
5 √n
29.134607699287
1 , 2 , 4 , 8 , 16 , 32 , 64 , 128 , 163997 , 327994 , 655988 , 1311976 , 2623952 , 5247904 , 10495808 , 20991616
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
-20991615
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 20991616 can be divided by 16 positive divisors.
The sum of these divisors (counting 20991616) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000000100111010000000
3
Ternary
1110111111002021
4
Quaternary
1100010322000
5
Quinary
20333212431
6
Senary
2025531224
8
Octal
120047200
10
Decimal
20991616
12
Duodecimal
7043b14
16
Hexadecimal
1404e80
20
Vigesimal
6b3j0g
36
Base36
chx8g
md5
a2009a427eb80f632d281425d237f0f1
sha1
bfcca592ff6b36afe628488173c5b372063a271b
sha256
2ed01ccca174412d2a3929eb9aa37d0b8935febd884f2817859abf908ca36b46
sha512
f2d52e1d00f9cdcbcd9dcb9fdb891da824a9295e0698254089252c13b2cf76760ed672ccdb9dea6a378c16c31762bb23b37948ea171668f7ce62ccd993659b18
ripemd-160
e8a491adcf45691295a5a8aaff05c58edef81853
Diameter
41983232
Circumference
131894213.22516
Area
1.3843363383223E+15
Volume
3.8745942438544E+22
Surface area
5.5373453532892E+15
Circumference
131894213.22516
Perimeter
83966464
Area
440647942291456
Diagonal
29686628.043328
Surface area
2643887653748736
Volume
9.2499123957724E+21
Space diagonal
36358545.444976
Perimeter
62974848
Area
1.9080615607487E+14
Altitude
18179272.722488
Surface area
1.9080615607487E+14
Volume
1.090112630072E+21
Height
9895542.6811094