20993949 is an odd 8-digits composite number following 20993948
and preceding 20993950 . In scientific notation, it is written as 2.0993949 × 10^7.
The sum of its digits is 45. It has a total of 2 prime factors and 4 positive divisors.
There are 13995960 positive integers (up to 20993949) that are relatively prime to 20993949.
20993949 has 4 divisors, whose sum is 23326620
The reverse of 20993949 is 94939902
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty million nine hundred ninety-three thousand nine hundred forty-nine
Scientific notation
2.0993949 × 10^7
Engineering notation
2.0993949 × 10^6
Prime Factorization
9 × 2332661
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20993949
Product of the distinct prime numbers
The prime factorization of 20993949 is 9 × 2332661.
Since it has a total of 2 prime factors.
9 , 3 , 63 , 65 , 509 , 294 , 7590 , 3170 , 23286 , 98311 , 461246 , 24645 , 7945605 , 3192527 , 94737795 , 85217274 , 847186373 , 567414937 , 8068362463 , 2149804027
n×2
41987898
n×3
62981847
n×4
83975796
n×5
104969745
n÷2
10496974.5
n÷3
6997983
n÷3
5248487.25
n÷5
4198789.8
n2
440745894614601
n3
9.2529968334983E+21
n4
1.9425694361962E+29
n5
4.0782203672463E+36
2 √n
4581.9154291628
3 √n
275.86591628273
4 √n
67.689847312302
5 √n
29.135255272282
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20993948
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20993949 can be divided by 4 positive divisors.
The sum of these divisors (counting 20993949) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000101011110011101
3
Ternary
1110111121021200
4
Quaternary
1100011132131
5
Quinary
20333301244
6
Senary
2025550113
8
Octal
120053635
10
Decimal
20993949
12
Duodecimal
7045339
16
Hexadecimal
140579d
20
Vigesimal
6b44h9
36
Base36
chz19
md5
5515c1463fa6ee91cf7284e12bbf3e7a
sha1
3ae814dd63056e14b5a7196e936ede0747010f0b
sha256
805137a7eb98a33a1550c70b6ea94279768a6960b52f984add749cc18f805c6e
sha512
8281ef8eef6945826cda36ed5dd2fd41dcc4a42ba80bb9c67e6d085f3acb585dbb11d4aecc511b0bc7a613e7b573a98960cbe2b43071acc86c9e53dce8ef21bd
ripemd-160
aa7ed2a5e97d53f6fc4b5afbf94981be3c88135c
Diameter
41987898
Circumference
131908871.89648
Area
1.3846440646211E+15
Volume
3.8758862501077E+22
Surface area
5.5385762584844E+15
Circumference
131908871.89648
Perimeter
83975796
Area
440745894614601
Diagonal
29689927.403569
Surface area
2644475367687606
Volume
9.2529968334983E+21
Space diagonal
36362586.31951
Perimeter
62981847
Area
1.9084857067497E+14
Altitude
18181293.159755
Surface area
1.9084857067497E+14
Volume
1.0904761345441E+21
Height
9896642.4678564