20398900 is an even 8-digits composite number following 20398899
and preceding 20398901 . In scientific notation, it is written as 2.0398900 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 12 positive divisors.
There are 8159520 positive integers (up to 20398900) that are relatively prime to 20398900.
20398900 has 12 divisors, whose sum is 37126180
The reverse of 20398900 is 00989302
Previous prime number is 25
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million three hundred ninety-eight thousand nine hundred
Scientific notation
2.0398900 × 10^7
Engineering notation
2.0398900 × 10^6
Prime Factorization
2 × 2 × 25 × 203989
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10199450
Product of the distinct prime numbers
The prime factorization of 20398900 is 2 × 2 × 25 × 203989.
Since it has a total of 4 prime factors.
9 , 5 , 84 , 36 , 997 , 909 , 4886 , 5710 , 66854 , 59043 , 146315 , 901038 , 6155945 , 1843540 , 9819387 , 97325080 , 742423968 , 192343153 , 4176689387 , 5281169690
n×2
40797800
n×3
61196700
n×4
81595600
n×5
101994500
n÷2
10199450
n÷3
6799633.3333333
n÷3
5099725
n÷5
4079780
n2
416115121210000
n3
8.4882907460507E+21
n4
1.7315179409961E+29
n5
3.5321061326586E+36
2 √n
4516.5141425661
3 √n
273.23453035474
4 √n
67.205015754526
5 √n
28.968189297665
1 , 2 , 4 , 25 , 50 , 100 , 203989 , 407978 , 815956 , 5099725 , 10199450 , 20398900
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20398899
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20398900 can be divided by 12 positive divisors.
The sum of these divisors (counting 20398900) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001101110100001100110100
3
Ternary
1102101101000211
4
Quaternary
1031310030310
5
Quinary
20210231100
6
Senary
2005115204
8
Octal
115641464
10
Decimal
20398900
12
Duodecimal
69b8b04
16
Hexadecimal
1374334
20
Vigesimal
679h50
36
Base36
c57w4
md5
af14a37cb353f036d4efa5c5291155bc
sha1
e6fb7759da7dea36fd5cf29f1763ae5120127b59
sha256
05b6c42da1a8ce689d8cf48dade48944c28688266013ff4644198df4a447b43b
sha512
070a0b2acd0bfb6ac959d87c890843212d497d21289cd12cc1eda99872b2915ac8a42bc319be1fad587f4ba144cad8d7ad289035ccf288b97168f891fdbf6c58
ripemd-160
0d7f30c5c42ca5b4d17612d99f77582650417932
Diameter
40797800
Circumference
128170068.76263
Area
1.307264207841E+15
Volume
3.5555669132436E+22
Surface area
5.2290568313638E+15
Circumference
128170068.76263
Perimeter
81595600
Area
416115121210000
Diagonal
28848401.037493
Surface area
2496690727260000
Volume
8.4882907460507E+21
Space diagonal
35331931.218517
Perimeter
61196700
Area
1.8018313293335E+14
Altitude
17665965.609258
Surface area
1.8018313293335E+14
Volume
1.0003546578692E+21
Height
9616133.6791642