20198909 is an odd 8-digits composite number following 20198908
and preceding 20198910 . In scientific notation, it is written as 2.0198909 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 20176416 positive integers (up to 20198909) that are relatively prime to 20198909.
20198909 has 4 divisors, whose sum is 20221404
The reverse of 20198909 is 90989102
Previous prime number is 937
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 nine
Scientific notation
2.0198909 × 10^7
Engineering notation
2.0198909 × 10^6
Prime Factorization
937 × 21557
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20198909
Product of the distinct prime numbers
The prime factorization of 20198909 is 937 × 21557.
Since it has a total of 2 prime factors.
9 , 5 , 89 , 59 , 396 , 845 , 1127 , 7074 , 27481 , 79596 , 322900 , 380206 , 1638343 , 3618442 , 15956803 , 29766541 , 353587485 , 632261545 , 6277581600 , 8063243611
n×2
40397818
n×3
60596727
n×4
80795636
n×5
100994545
n÷2
10099454.5
n÷3
6732969.6666667
n÷3
5049727.25
n÷5
4039781.8
n2
407995924790281
n3
8.2410725572097E+21
n4
1.6646067464548E+29
n5
3.3623240192426E+36
2 √n
4494.319637053
3 √n
272.33866498556
4 √n
67.039687029796
5 √n
28.91116434982
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
-20198908
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 20198909 can be divided by 4 positive divisors.
The sum of these divisors (counting 20198909) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000011010111111101
3
Ternary
1102000012200202
4
Quaternary
1031003113331
5
Quinary
20132331114
6
Senary
2000533245
8
Octal
115032775
10
Decimal
20198909
12
Duodecimal
6921225
16
Hexadecimal
13435fd
20
Vigesimal
664h59
36
Base36
c0xkt
md5
15d56e31c00723c94bf53c16a2eedf9b
sha1
e6af47791f89e9669502d8cb7e22a7cd62dfe7e2
sha256
cae7d354717f1b6af80d2560ee6ff3a9f88801013d363cbc52f1eaf7f16ea460
sha512
5dccf17e584e98ed413052c17ada7e947cfef3abbd09056ae63771b3400d8c60f32e3d90a0cb870c4f5d2b5151754ae28aedd07083d750aa9c2a4f7a3672b7a0
ripemd-160
62fd1b63eb17985cc99b0e6982782c8cec2a6b49
Diameter
40397818
Circumference
126913488.24986
Area
1.2817570000157E+15
Volume
3.4520124004574E+22
Surface area
5.1270280000629E+15
Circumference
126913488.24986
Perimeter
80795636
Area
407995924790281
Diagonal
28565571.05294
Surface area
2447975548741686
Volume
8.2410725572097E+21
Space diagonal
34985536.64546
Perimeter
60596727
Area
1.7666741775445E+14
Altitude
17492768.32273
Surface area
1.7666741775445E+14
Volume
9.7121971490889E+20
Height
9521857.0176467