20993986 is an even 8-digits composite number following 20993985
and preceding 20993987 . In scientific notation, it is written as 2.0993986 × 10^7.
The sum of its digits is 46. It has a total of 4 prime factors and 16 positive divisors.
There are 9267984 positive integers (up to 20993986) that are relatively prime to 20993986.
20993986 has 16 divisors, whose sum is 35388864
The reverse of 20993986 is 68939902
Previous prime number is 23
Is Prime? no
Number parity even
Number length 8
Sum of Digits 46
Digital Root 1
Name
twenty million nine hundred ninety-three thousand nine hundred eighty-six
Scientific notation
2.0993986 × 10^7
Engineering notation
2.0993986 × 10^6
Prime Factorization
2 × 13 × 23 × 35107
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20993986
Product of the distinct prime numbers
The prime factorization of 20993986 is 2 × 13 × 23 × 35107.
Since it has a total of 4 prime factors.
5 , 8 , 7 , 99 , 410 , 601 , 8537 , 3704 , 83955 , 10411 , 559557 , 2465 , 6693266 , 3421442 , 39868887 , 29556210 , 985390918 , 855712900 , 1814635032 , 1225202596
n×2
41987972
n×3
62981958
n×4
83975944
n×5
104969930
n÷2
10496993
n÷3
6997995.3333333
n÷3
5248496.5
n÷5
4198797.2
n2
440747448168196
n3
9.2530457563788E+21
n4
1.9425831306678E+29
n5
4.0782563049075E+36
2 √n
4581.9194667737
3 √n
275.86607834582
4 √n
67.689877136642
5 √n
29.135265541943
1 , 2 , 13 , 23 , 26 , 46 , 299 , 598 , 35107 , 70214 , 456391 , 807461 , 912782 , 1614922 , 10496993 , 20993986
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
-20993985
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 20993986 can be divided by 16 positive divisors.
The sum of these divisors (counting 20993986) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000000101011111000010
3
Ternary
1110111121100001
4
Quaternary
1100011133002
5
Quinary
20333301421
6
Senary
2025550214
8
Octal
120053702
10
Decimal
20993986
12
Duodecimal
704536a
16
Hexadecimal
14057c2
20
Vigesimal
6b44j6
36
Base36
chz2a
md5
09758ee0d36dca5668b662dc226e21b6
sha1
6d8786d7e3c616d4022719cf5c3ce51ebaf26fa9
sha256
5fa2e495753232b4b6d08a2012fee43c414d5092ba618dc3ba287654d1ef3fa0
sha512
7a93156bc4b3b47ff6eb31bf731fcf01378ddc69933cfe437309b8d2926d353c79bff16934c6a99b66d82f40d33f231270109812f9de2f9268abd87b03db0e79
ripemd-160
82116d6865e8651dbe45d0115679ea6f67703311
Diameter
41987972
Circumference
131909104.37433
Area
1.3846489452537E+15
Volume
3.875906742876E+22
Surface area
5.5385957810146E+15
Circumference
131909104.37433
Perimeter
83975944
Area
440747448168196
Diagonal
29689979.729471
Surface area
2644484689009176
Volume
9.2530457563788E+21
Space diagonal
36362650.40539
Perimeter
62981958
Area
1.9084924338341E+14
Altitude
18181325.202695
Surface area
1.9084924338341E+14
Volume
1.0904819001608E+21
Height
9896659.9098236