20101909 is an odd 8-digits composite number following 20101908
and preceding 20101910 . In scientific notation, it is written as 2.0101909 × 10^7.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 19923904 positive integers (up to 20101909) that are relatively prime to 20101909.
20101909 has 4 divisors, whose sum is 20279916
The reverse of 20101909 is 90910102
Previous prime number is 113
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million one hundred one thousand nine hundred nine
Scientific notation
2.0101909 × 10^7
Engineering notation
2.0101909 × 10^6
Prime Factorization
113 × 177893
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20101909
Product of the distinct prime numbers
The prime factorization of 20101909 is 113 × 177893.
Since it has a total of 2 prime factors.
6 , 3 , 94 , 5 , 205 , 655 , 7053 , 8998 , 13772 , 23985 , 982808 , 274554 , 7260381 , 6178025 , 4118704 , 10826416 , 113600365 , 423977732 , 4636220720 , 7303224129
n×2
40203818
n×3
60305727
n×4
80407636
n×5
100509545
n÷2
10050954.5
n÷3
6700636.3333333
n÷3
5025477.25
n÷5
4020381.8
n2
404086745444281
n3
8.1229149850271E+21
n4
1.6328609784375E+29
n5
3.2823622798202E+36
2 √n
4483.5152503365
3 √n
271.90202010927
4 √n
66.95905652215
5 √n
28.883343189347
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
-20101908
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 20101909 can be divided by 4 positive divisors.
The sum of these divisors (counting 20101909) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100101011101100010101
3
Ternary
1101211021122011
4
Quaternary
1030223230111
5
Quinary
20121230114
6
Senary
1554504221
8
Octal
114535425
10
Decimal
20101909
12
Duodecimal
6895071
16
Hexadecimal
132bb15
20
Vigesimal
65cef9
36
Base36
byuqd
md5
59872ee7bcb934a2d3f88a59bfd45693
sha1
21cb3b2e6531607f7e00fa58147642448e5c2cc6
sha256
b8fe64f4b88a7f3509b2365ba5beb6ad9704f24bdb10c20187a37be72c65e885
sha512
cbf5e8765e7a886b4a67315a0ee6c1818f614691de64a44423bb5d913b03f70e32cdd9c22efa2d376fa229c7554993730e8de9dbd46ee1d17ed3c0baad015eb9
ripemd-160
a15bdf4aebc0a5e791cbc92fa2825baf55b76b20
Diameter
40203818
Circumference
126304019.27506
Area
1.2694759509008E+15
Volume
3.4025186723594E+22
Surface area
5.077903803603E+15
Circumference
126304019.27506
Perimeter
80407636
Area
404086745444281
Diagonal
28428392.33739
Surface area
2424520472665686
Volume
8.1229149850271E+21
Space diagonal
34817527.717126
Perimeter
60305727
Area
1.7497469344366E+14
Altitude
17408763.858563
Surface area
1.7497469344366E+14
Volume
9.5729471148575E+20
Height
9476130.7791299