20001909 is an odd 8-digits composite number following 20001908
and preceding 20001910 . In scientific notation, it is written as 2.0001909 × 10^7.
The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors.
There are 12780096 positive integers (up to 20001909) that are relatively prime to 20001909.
20001909 has 16 divisors, whose sum is 27792000
The reverse of 20001909 is 90910002
Previous prime number is 149
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million one thousand nine hundred nine
Scientific notation
2.0001909 × 10^7
Engineering notation
2.0001909 × 10^6
Prime Factorization
3 × 29 × 149 × 1543
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20001909
Product of the distinct prime numbers
The prime factorization of 20001909 is 3 × 29 × 149 × 1543.
Since it has a total of 4 prime factors.
5 , 2 , 43 , 29 , 647 , 535 , 9739 , 5912 , 45209 , 92683 , 400543 , 936930 , 6337674 , 1874726 , 29299045 , 86798267 , 34557890 , 83390954 , 5953768580 , 1006575390
n×2
40003818
n×3
60005727
n×4
80007636
n×5
100009545
n÷2
10000954.5
n÷3
6667303
n÷3
5000477.25
n÷5
4000381.8
n2
400076363644281
n3
8.0022910186638E+21
n4
1.6006109674683E+29
n5
3.2015274915703E+36
2 √n
4472.3493825952
3 √n
271.45039775677
4 √n
66.875626222079
5 √n
28.854548919939
1 , 3 , 29 , 87 , 149 , 447 , 1543 , 4321 , 4629 , 12963 , 44747 , 134241 , 229907 , 689721 , 6667303 , 20001909
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20001908
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20001909 can be divided by 16 positive divisors.
The sum of these divisors (counting 20001909) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100010011010001110101
3
Ternary
1101122012110110
4
Quaternary
1030103101311
5
Quinary
20110030114
6
Senary
1552413233
8
Octal
114232165
10
Decimal
20001909
12
Duodecimal
6847219
16
Hexadecimal
1313475
20
Vigesimal
6504f9
36
Base36
bwpkl
md5
b74dff78060fbc1f7608624d0ec4a8df
sha1
390b282d0c7f6ea845013d7154cabface3a373bd
sha256
02d92deb40cfd72841339312fa4aa04f77321498a0fe38f6e098cc588fcf1194
sha512
a2f0121ffcd78cb65dd486e60c178b347f52278409ba1f5f1b4cd9071b937b0ed6677aafc83b5dd60cafc0aacec865853595978322e09e6382e8d2776040425c
ripemd-160
ea48b030141b8a25b1b1854d941b3871f31a1623
Diameter
40003818
Circumference
125675700.74434
Area
1.2568769648998E+15
Volume
3.3519918234829E+22
Surface area
5.0275078595992E+15
Circumference
125675700.74434
Perimeter
80007636
Area
400076363644281
Diagonal
28286970.981152
Surface area
2400458181865686
Volume
8.0022910186638E+21
Space diagonal
34644322.636369
Perimeter
60005727
Area
1.7323814718482E+14
Altitude
17322161.318185
Surface area
1.7323814718482E+14
Volume
9.430790407209E+20
Height
9428990.3270508