20949938 is an even 8-digits composite number following 20949937
and preceding 20949939 . In scientific notation, it is written as 2.0949938 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 10474968 positive integers (up to 20949938) that are relatively prime to 20949938.
20949938 has 4 divisors, whose sum is 31424910
The reverse of 20949938 is 83994902
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty million nine hundred forty-nine thousand nine hundred thirty-eight
Scientific notation
2.0949938 × 10^7
Engineering notation
2.0949938 × 10^6
Prime Factorization
2 × 10474969
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20949938
Product of the distinct prime numbers
The prime factorization of 20949938 is 2 × 10474969.
Since it has a total of 2 prime factors.
1 , 3 , 30 , 88 , 280 , 32 , 7074 , 7947 , 18299 , 15375 , 787017 , 106103 , 1090017 , 805399 , 99441281 , 25583769 , 168188648 , 53041043 , 8531393117 , 8829523622
n×2
41899876
n×3
62849814
n×4
83799752
n×5
104749690
n÷2
10474969
n÷3
6983312.6666667
n÷3
5237484.5
n÷5
4189987.6
n2
438899902203844
n3
9.1949257393766E+21
n4
1.9263312415454E+29
n5
4.035652007784E+36
2 √n
4577.110223711
3 √n
275.67300944683
4 √n
67.654343716505
5 √n
29.123029384541
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
-20949937
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 20949938 can be divided by 4 positive divisors.
The sum of these divisors (counting 20949938) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111111010101110110010
3
Ternary
1110102100220122
4
Quaternary
1033322232302
5
Quinary
20330344223
6
Senary
2025010242
8
Octal
117725662
10
Decimal
20949938
12
Duodecimal
7023982
16
Hexadecimal
13fabb2
20
Vigesimal
6aiegi
36
Base36
ch12q
md5
11d00af03fd79b5665e66fe2bddb4da2
sha1
d9348e1106bfcdbd964bbb986ca4d2286db308de
sha256
0c570aff5872400a177d8dab9be8469df71bd9b1a530a00fa2f3c8fe5664bf57
sha512
04083bf67b52e0315c3f84712f4964ac178c026ad49570be2241e9e99a3b4e04f299e2b1d5bb5fd532e0220ead8ee59f791a23dc61cff4acacea49295aabe588
ripemd-160
49dd293b0797fcfeb847287be5203d631ecfd160
Diameter
41899876
Circumference
131632342.62792
Area
1.3788447084249E+15
Volume
3.8515614870839E+22
Surface area
5.5153788336995E+15
Circumference
131632342.62792
Perimeter
83799752
Area
438899902203844
Diagonal
29627686.450475
Surface area
2633399413223064
Volume
9.1949257393766E+21
Space diagonal
36286357.031418
Perimeter
62849814
Area
1.9004923251352E+14
Altitude
18143178.515709
Surface area
1.9004923251352E+14
Volume
1.08363239047E+21
Height
9875895.4834918