20996986 is an even 8-digits composite number following 20996985
and preceding 20996987 . In scientific notation, it is written as 2.0996986 × 10^7.
The sum of its digits is 49. It has a total of 4 prime factors and 16 positive divisors.
There are 9899568 positive integers (up to 20996986) that are relatively prime to 20996986.
20996986 has 16 divisors, whose sum is 33343200
The reverse of 20996986 is 68969902
Previous prime number is 43
Is Prime? no
Number parity even
Number length 8
Sum of Digits 49
Digital Root 4
Name
twenty million nine hundred ninety-six thousand nine hundred eighty-six
Scientific notation
2.0996986 × 10^7
Engineering notation
2.0996986 × 10^6
Prime Factorization
2 × 29 × 43 × 8419
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20996986
Product of the distinct prime numbers
The prime factorization of 20996986 is 2 × 29 × 43 × 8419.
Since it has a total of 4 prime factors.
4 , 8 , 31 , 36 , 255 , 816 , 3615 , 8195 , 80036 , 12023 , 451830 , 486564 , 8590536 , 47654 , 19640334 , 26064364 , 810376621 , 551188095 , 5967513116 , 5950158158
n×2
41993972
n×3
62990958
n×4
83987944
n×5
104984930
n÷2
10498493
n÷3
6998995.3333333
n÷3
5249246.5
n÷5
4199397.2
n2
440873421084196
n3
9.257013050277E+21
n4
1.9436937341848E+29
n5
4.0811710124967E+36
2 √n
4582.2468287948
3 √n
275.879217963
4 √n
67.692295195205
5 √n
29.136098168972
1 , 2 , 29 , 43 , 58 , 86 , 1247 , 2494 , 8419 , 16838 , 244151 , 362017 , 488302 , 724034 , 10498493 , 20996986
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
-20996985
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 20996986 can be divided by 16 positive divisors.
The sum of these divisors (counting 20996986) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000000110001101111010
3
Ternary
1110111202110011
4
Quaternary
1100012031322
5
Quinary
20333400421
6
Senary
2030012134
8
Octal
120061572
10
Decimal
20996986
12
Duodecimal
704704a
16
Hexadecimal
140637a
20
Vigesimal
6b4c96
36
Base36
ci1dm
md5
fe0dff83b3303f819b11f63ce11aae01
sha1
daabfb1052baba675bcea564c20b6b7838141c72
sha256
40ee7f62693e404a2803284f2f9aa6541b44275d0d60c49713b820472e629bb4
sha512
1292c418f4ea58fe9095ab0681ad62c5a0eb426b2dfa9c48e2926f88e0301acb0c29eeaedbcd63f2a3bd707cce7a0b29753f839b49e410eae5ae674dc14eeeb3
ripemd-160
54d552d5d7f2b61e54453819592b3b081118c772
Diameter
41993972
Circumference
131927953.93026
Area
1.3850447008411E+15
Volume
3.877568559058E+22
Surface area
5.5401788033644E+15
Circumference
131927953.93026
Perimeter
83987944
Area
440873421084196
Diagonal
29694222.370158
Surface area
2645240526505176
Volume
9.257013050277E+21
Space diagonal
36367846.557812
Perimeter
62990958
Area
1.9090379125613E+14
Altitude
18183923.278906
Surface area
1.9090379125613E+14
Volume
1.0909494502305E+21
Height
9898074.123386