20001908 is an even 8-digits composite number following 20001907
and preceding 20001909 . In scientific notation, it is written as 2.0001908 × 10^7.
The sum of its digits is 20. It has a total of 4 prime factors and 12 positive divisors.
There are 9474552 positive integers (up to 20001908) that are relatively prime to 20001908.
20001908 has 12 divisors, whose sum is 36845760
The reverse of 20001908 is 80910002
Previous prime number is 19
Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million one thousand nine hundred eight
Scientific notation
2.0001908 × 10^7
Engineering notation
2.0001908 × 10^6
Prime Factorization
2 × 2 × 19 × 263183
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10000954
Product of the distinct prime numbers
The prime factorization of 20001908 is 2 × 2 × 19 × 263183.
Since it has a total of 4 prime factors.
9 , 7 , 45 , 9 , 282 , 275 , 2271 , 4997 , 58987 , 28332 , 423448 , 818451 , 2667577 , 24864 , 22529821 , 33367348 , 139697602 , 487833412 , 79674138 , 8241402441
n×2
40003816
n×3
60005724
n×4
80007632
n×5
100009540
n÷2
10000954
n÷3
6667302.6666667
n÷3
5000477
n÷5
4000381.6
n2
400076323640464
n3
8.0022898184348E+21
n4
1.6006106473767E+29
n5
3.2015266912649E+36
2 √n
4472.3492707972
3 √n
271.45039323303
4 √n
66.875625386214
5 √n
28.854548631421
1 , 2 , 4 , 19 , 38 , 76 , 263183 , 526366 , 1052732 , 5000477 , 10000954 , 20001908
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
-20001907
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 20001908 can be divided by 12 positive divisors.
The sum of these divisors (counting 20001908) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100010011010001110100
3
Ternary
1101122012110102
4
Quaternary
1030103101310
5
Quinary
20110030113
6
Senary
1552413232
8
Octal
114232164
10
Decimal
20001908
12
Duodecimal
6847218
16
Hexadecimal
1313474
20
Vigesimal
6504f8
36
Base36
bwpkk
md5
cab865f5d71423253e25196c4720f4d9
sha1
029bd2e10b2ef33a23b9ef4b469874242e2f7126
sha256
0482f3194bea8cb8d097e5664e835daa91048a57d8227671ea770ca6878cb11a
sha512
1c83f82782d1f4ae641a55a0d17d96de9282436be7aaf56f684f7a20368fa7cea1be775e0c8a927256d8de5157dda07df4e0e828f9d8e4e92af61cb67cb1156e
ripemd-160
a87115a17ded43ab27a46565ca4756a280d7378d
Diameter
40003816
Circumference
125675694.46116
Area
1.2568768392241E+15
Volume
3.3519913207321E+22
Surface area
5.0275073568964E+15
Circumference
125675694.46116
Perimeter
80007632
Area
400076323640464
Diagonal
28286969.566939
Surface area
2400457941842784
Volume
8.0022898184348E+21
Space diagonal
34644320.904318
Perimeter
60005724
Area
1.7323812986266E+14
Altitude
17322160.452159
Surface area
1.7323812986266E+14
Volume
9.4307889927255E+20
Height
9428989.8556463