20001915 is an odd 8-digits composite number following 20001914
and preceding 20001916 . In scientific notation, it is written as 2.0001915 × 10^7.
The sum of its digits is 18. It has a total of 4 prime factors and 12 positive divisors.
There are 10667664 positive integers (up to 20001915) that are relatively prime to 20001915.
20001915 has 12 divisors, whose sum is 34670064
The reverse of 20001915 is 51910002
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million one thousand nine hundred fifteen
Scientific notation
2.0001915 × 10^7
Engineering notation
2.0001915 × 10^6
Prime Factorization
3 × 3 × 5 × 444487
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
6667305
Product of the distinct prime numbers
The prime factorization of 20001915 is 3 × 3 × 5 × 444487.
Since it has a total of 4 prime factors.
7 , 9 , 27 , 61 , 300 , 573 , 3603 , 253 , 69721 , 23278 , 505383 , 288040 , 5370345 , 5594695 , 69043622 , 13668493 , 334446257 , 176425809 , 4610415896 , 9746700258
n×2
40003830
n×3
60005745
n×4
80007660
n×5
100009575
n÷2
10000957.5
n÷3
6667305
n÷3
5000478.75
n÷5
4000383
n2
400076603667225
n3
8.0022982200405E+21
n4
1.600612888019E+29
n5
3.2015322934061E+36
2 √n
4472.3500533836
3 √n
271.45042489922
4 √n
66.875631237272
5 √n
28.854550651047
1 , 3 , 5 , 9 , 15 , 45 , 444487 , 1333461 , 2222435 , 4000383 , 6667305 , 20001915
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
-20001914
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 20001915 can be divided by 12 positive divisors.
The sum of these divisors (counting 20001915) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100010011010001111011
3
Ternary
1101122012110200
4
Quaternary
1030103101323
5
Quinary
20110030130
6
Senary
1552413243
8
Octal
114232173
10
Decimal
20001915
12
Duodecimal
6847223
16
Hexadecimal
131347b
20
Vigesimal
6504ff
36
Base36
bwpkr
md5
34615b35bc22b7b5273806cb815cddeb
sha1
15213e0eca4e582ed1288947e62bbe29bd2957f5
sha256
111d05bbf220ea3be0ed1715c33b99e2bf9c6dc5db8bdf93e9880e2be5426af0
sha512
811f99f6bdcc266c3461b8836c7ced6552296339c7775c69fe02bbf4291df6e887b9819c246cc2ab781ce822431546d25b500b03c2f489d91ee342acf4bbe6af
ripemd-160
566b6a50b74bd774dbc099ac60c25a05792a5b36
Diameter
40003830
Circumference
125675738.44345
Area
1.2568777189541E+15
Volume
3.3519948399885E+22
Surface area
5.0275108758164E+15
Circumference
125675738.44345
Perimeter
80007660
Area
400076603667225
Diagonal
28286979.466434
Surface area
2400459622003350
Volume
8.0022982200405E+21
Space diagonal
34644333.028674
Perimeter
60005745
Area
1.7323825111781E+14
Altitude
17322166.514337
Surface area
1.7323825111781E+14
Volume
9.4307988941128E+20
Height
9428993.155478