20198945 is an odd 8-digits composite number following 20198944
and preceding 20198946 . In scientific notation, it is written as 2.0198945 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 13964544 positive integers (up to 20198945) that are relatively prime to 20198945.
20198945 has 8 divisors, whose sum is 24345960
The reverse of 20198945 is 54989102
Previous prime number is 17641
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million one hundred ninety-eight thousand nine hundred forty-five
Scientific notation
2.0198945 × 10^7
Engineering notation
2.0198945 × 10^6
Prime Factorization
5 × 17641 × 229
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20198945
Product of the distinct prime numbers
The prime factorization of 20198945 is 5 × 17641 × 229.
Since it has a total of 3 prime factors.
3 , 8 , 66 , 1 , 361 , 305 , 1407 , 1129 , 36682 , 39043 , 649150 , 376727 , 7146750 , 6460754 , 62544718 , 16928503 , 720471387 , 687880853 , 2300377204 , 6439098197
n×2
40397890
n×3
60596835
n×4
80795780
n×5
100994725
n÷2
10099472.5
n÷3
6732981.6666667
n÷3
5049736.25
n÷5
4039789
n2
407997379113025
n3
8.2411166208481E+21
n4
1.664618613631E+29
n5
3.3623539822708E+36
2 √n
4494.3236421068
3 √n
272.33882677955
4 √n
67.039716900557
5 √n
28.911174655339
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
-20198944
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 20198945 can be divided by 8 positive divisors.
The sum of these divisors (counting 20198945) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101000011011000100001
3
Ternary
1102000012202002
4
Quaternary
1031003120201
5
Quinary
20132331240
6
Senary
2000533345
8
Octal
115033041
10
Decimal
20198945
12
Duodecimal
6921255
16
Hexadecimal
1343621
20
Vigesimal
664h75
36
Base36
c0xlt
md5
f8d7b7eed19d6188427c6c78681d0ade
sha1
d7a14a51492833e0f9efbec5baa5c424d5791148
sha256
56fbd86c1dbd77af34d2935cc1e5074d71eabee46606b3ec0b1ac8cbc01d6853
sha512
27bc56ee2eb39d8970d7b9455c6f79bf7d9ad08c885903f56e81fd76529958f79676021483235c3a9218532804c25c41872f3c8e08a95acd9687ebdf0171e7ce
ripemd-160
879e5da2dffbee1bdbb4dd8a9e8203d29b379207
Diameter
40397890
Circumference
126913714.44453
Area
1.2817615689054E+15
Volume
3.4520308577911E+22
Surface area
5.1270462756215E+15
Circumference
126913714.44453
Perimeter
80795780
Area
407997379113025
Diagonal
28565621.964628
Surface area
2447984274678150
Volume
8.2411166208481E+21
Space diagonal
34985598.999289
Perimeter
60596835
Area
1.7666804749468E+14
Altitude
17492799.499645
Surface area
1.7666804749468E+14
Volume
9.7122490785848E+20
Height
9521873.9882094