20398421 is an odd 8-digits composite number following 20398420
and preceding 20398422 . In scientific notation, it is written as 2.0398421 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 19998720 positive integers (up to 20398421) that are relatively prime to 20398421.
20398421 has 8 divisors, whose sum is 20802264
The reverse of 20398421 is 12489302
Previous prime number is 113
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million three hundred ninety-eight thousand four hundred twenty-one
Scientific notation
2.0398421 × 10^7
Engineering notation
2.0398421 × 10^6
Prime Factorization
97 × 113 × 1861
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20398421
Product of the distinct prime numbers
The prime factorization of 20398421 is 97 × 113 × 1861.
Since it has a total of 3 prime factors.
2 , 9 , 40 , 51 , 717 , 461 , 3656 , 3857 , 34297 , 76668 , 41665 , 143680 , 3099216 , 5924127 , 1510211 , 42245519 , 603609530 , 633411015 , 3282039193 , 8289483041
n×2
40796842
n×3
61195263
n×4
81593684
n×5
101992105
n÷2
10199210.5
n÷3
6799473.6666667
n÷3
5099605.25
n÷5
4079684.2
n2
416095579293241
n3
8.4876928026624E+21
n4
1.7313553110738E+29
n5
3.5316914535869E+36
2 √n
4516.4611146339
3 √n
273.23239167137
4 √n
67.204621229748
5 √n
28.968053252162
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20398420
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20398421 can be divided by 8 positive divisors.
The sum of these divisors (counting 20398421) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110100000101010101
3
Ternary
1102101100101002
4
Quaternary
1031310011111
5
Quinary
20210222141
6
Senary
2005113045
8
Octal
115640525
10
Decimal
20398421
12
Duodecimal
69b8785
16
Hexadecimal
1374155
20
Vigesimal
679g11
36
Base36
c57it
md5
ebd8310538e6667650b89420980d72f3
sha1
3b57c423101f32d12f1a16378d337d959bfe6e54
sha256
41700984c223ee5abf6eaa94dd68e2ef16991d25e8a183a513d32cb69ac910e8
sha512
7f7be1e2e8cf4626ef5edcce9081c65b937fc2d1d021d0112086e317d0c44d1315b943b72f426d90d50318e908ab4c4f24f2d1ba50bb3e1431eb247710bec6da
ripemd-160
c3db2b97be658274c3ef0c87dd5e60ac405ad57f
Diameter
40796842
Circumference
128167059.11686
Area
1.3072028150988E+15
Volume
3.5553164473028E+22
Surface area
5.2288112603953E+15
Circumference
128167059.11686
Perimeter
81593684
Area
416095579293241
Diagonal
28847723.629196
Surface area
2496573475759446
Volume
8.4876928026624E+21
Space diagonal
35331101.56618
Perimeter
61195263
Area
1.8017467103517E+14
Altitude
17665550.78309
Surface area
1.8017467103517E+14
Volume
1.0002841895651E+21
Height
9615907.8763987