20949947 is an odd 8-digits composite number following 20949946
and preceding 20949948 . In scientific notation, it is written as 2.0949947 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 20697456 positive integers (up to 20949947) that are relatively prime to 20949947.
20949947 has 4 divisors, whose sum is 21202440
The reverse of 20949947 is 74994902
Previous prime number is 83
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty million nine hundred forty-nine thousand nine hundred forty-seven
Scientific notation
2.0949947 × 10^7
Engineering notation
2.0949947 × 10^6
Prime Factorization
83 × 252409
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20949947
Product of the distinct prime numbers
The prime factorization of 20949947 is 83 × 252409.
Since it has a total of 2 prime factors.
5 , 10 , 46 , 4 , 589 , 828 , 5046 , 3429 , 65 , 56321 , 787249 , 985061 , 3997076 , 5112178 , 33089114 , 59184138 , 702734444 , 902359306 , 5398096165 , 2769494052
n×2
41899894
n×3
62849841
n×4
83799788
n×5
104749735
n÷2
10474973.5
n÷3
6983315.6666667
n÷3
5237486.75
n÷5
4189989.4
n2
438900279302809
n3
9.194937589679E+21
n4
1.9263345517208E+29
n5
4.035660676282E+36
2 √n
4577.111206864
3 √n
275.67304892279
4 √n
67.654350982505
5 √n
29.123031886765
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
-20949946
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 20949947 can be divided by 4 positive divisors.
The sum of these divisors (counting 20949947) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111111010101110111011
3
Ternary
1110102100220222
4
Quaternary
1033322232323
5
Quinary
20330344242
6
Senary
2025010255
8
Octal
117725673
10
Decimal
20949947
12
Duodecimal
702398b
16
Hexadecimal
13fabbb
20
Vigesimal
6aieh7
36
Base36
ch12z
md5
ce44d43a1ab0fa5bd9bf142884892d4b
sha1
df4a6de55ff5184e32d33436fad151f2c7ce9bff
sha256
51338010ff47497f03b9c757336e0701d9888907e0b1db060b1aa67a6cb1244d
sha512
0e289e1c83ab3d9bcc9fd278e4f75636250b50d4b784f15171f27c76377080082b555a9ffa054e20238d0ba6fc48e5f9929d74e963dd43438bdc45d8713f6ab1
ripemd-160
5bfc1029a2a9cb52c72dc2b47918aecc9769f29a
Diameter
41899894
Circumference
131632399.17659
Area
1.3788458931162E+15
Volume
3.851566450927E+22
Surface area
5.5153835724649E+15
Circumference
131632399.17659
Perimeter
83799788
Area
438900279302809
Diagonal
29627699.178398
Surface area
2633401675816854
Volume
9.194937589679E+21
Space diagonal
36286372.619875
Perimeter
62849841
Area
1.9004939580216E+14
Altitude
18143186.309938
Surface area
1.9004939580216E+14
Volume
1.0836337870415E+21
Height
9875899.7261325