20842949 is an odd 8-digits composite number following 20842948
and preceding 20842950 . In scientific notation, it is written as 2.0842949 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 20399436 positive integers (up to 20842949) that are relatively prime to 20842949.
20842949 has 4 divisors, whose sum is 21286464
The reverse of 20842949 is 94924802
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million eight hundred forty-two thousand nine hundred forty-nine
Scientific notation
2.0842949 × 10^7
Engineering notation
2.0842949 × 10^6
Prime Factorization
47 × 443467
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20842949
Product of the distinct prime numbers
The prime factorization of 20842949 is 47 × 443467.
Since it has a total of 2 prime factors.
7 , 4 , 96 , 66 , 305 , 906 , 3326 , 6259 , 29738 , 84153 , 990205 , 441972 , 6411760 , 3800134 , 32482577 , 95188013 , 199957637 , 739866549 , 8817273955 , 5408057242
n×2
41685898
n×3
62528847
n×4
83371796
n×5
104214745
n÷2
10421474.5
n÷3
6947649.6666667
n÷3
5210737.25
n÷5
4168589.8
n2
434428523016601
n3
9.0547715493803E+21
n4
1.8872814161039E+29
n5
3.93365103045E+36
2 √n
4565.407867869
3 √n
275.20293120554
4 √n
67.567802005608
5 √n
29.093222821194
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
-20842948
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 20842949 can be divided by 4 positive divisors.
The sum of these divisors (counting 20842949) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111100000100111000101
3
Ternary
1110012221011002
4
Quaternary
1033200213011
5
Quinary
20313433244
6
Senary
2022423045
8
Octal
117404705
10
Decimal
20842949
12
Duodecimal
6b91a85
16
Hexadecimal
13e09c5
20
Vigesimal
6a5779
36
Base36
ceqit
md5
3f47989d15a62e3d1eec3b927ad72e9c
sha1
88da06a64df1aae937a0a6194dfdb9ae535d36db
sha256
30711039f0bd7be4f088fdbd9bc7f9c6d9de1bc876a24676c647290c38c4c3d3
sha512
ed330d834c2ed851e4cae5b17ee25bdc8b5d595a74f869d78820971db9692cfbbf420256d6cd3f4efc7430728258e2deee04b0600cbf80f676c8b8b92d2e7966
ripemd-160
2c25c58d5e93749ee8dda6d7c14b4c7342b57e09
Diameter
41685898
Circumference
130960110.91509
Area
1.3647974564188E+15
Volume
3.7928538372623E+22
Surface area
5.4591898256753E+15
Circumference
130960110.91509
Perimeter
83371796
Area
434428523016601
Diagonal
29476381.155651
Surface area
2606571138099606
Volume
9.0547715493803E+21
Space diagonal
36101046.647567
Perimeter
62528847
Area
1.8811306853046E+14
Altitude
18050523.323783
Surface area
1.8811306853046E+14
Volume
1.067115060777E+21
Height
9825460.3852169