20187902 is an even 8-digits composite number following 20187901
and preceding 20187903 . In scientific notation, it is written as 2.0187902 × 10^7.
The sum of its digits is 29. It has a total of 5 prime factors and 24 positive divisors.
There are 8570688 positive integers (up to 20187902) that are relatively prime to 20187902.
20187902 has 24 divisors, whose sum is 35557056
The reverse of 20187902 is 20978102
Previous prime number is 113
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred eighty-seven thousand nine hundred two
Scientific notation
2.0187902 × 10^7
Engineering notation
2.0187902 × 10^6
Prime Factorization
2 × 7 × 7 × 113 × 1823
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
2883986
Product of the distinct prime numbers
The prime factorization of 20187902 is 2 × 7 × 7 × 113 × 1823.
Since it has a total of 5 prime factors.
8 , 7 , 18 , 44 , 785 , 663 , 7847 , 34 , 77930 , 52143 , 296479 , 545524 , 2172673 , 2397761 , 67539988 , 58346023 , 571011331 , 782372605 , 489184775 , 8444557622
n×2
40375804
n×3
60563706
n×4
80751608
n×5
100939510
n÷2
10093951
n÷3
6729300.6666667
n÷3
5046975.5
n÷5
4037580.4
n2
407551387161604
n3
8.2276074639825E+21
n4
1.6609813317735E+29
n5
3.3531728349672E+36
2 √n
4493.0949244368
3 √n
272.28918745602
4 √n
67.030552171654
5 √n
28.908012748187
1 , 2 , 7 , 14 , 49 , 98 , 113 , 226 , 791 , 1582 , 1823 , 3646 , 5537 , 11074 , 12761 , 25522 , 89327 , 178654 , 205999 , 411998 , 1441993 , 2883986 , 10093951 , 20187902
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20187901
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20187902 can be divided by 24 positive divisors.
The sum of these divisors (counting 20187902) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001101000000101011111110
3
Ternary
1101222122121002
4
Quaternary
1031000223332
5
Quinary
20132003102
6
Senary
2000410302
8
Octal
115005376
10
Decimal
20187902
12
Duodecimal
6916992
16
Hexadecimal
1340afe
20
Vigesimal
6639f2
36
Base36
c0p32
md5
872da0036210968d3cd4959ad7ef54e4
sha1
017ca821ea4c846b23036ccbbcd3247991eab8d8
sha256
9944cea184dca1949a68d293a9bf9716e4b7573faeda5c49b8ccd03cb7286873
sha512
5cf24d958b2c64267b6553afc1a7ea2151527cc10127baff1acdaa03ad876cebcb2cce523f8894acf15aab66685e355098cc3eda66b2bccca4abdf0c98b9e381
ripemd-160
f6ea193a680b92e00ff65424138fc5af7b83af24
Diameter
40375804
Circumference
126844329.22918
Area
1.2803604438672E+15
Volume
3.4463721553957E+22
Surface area
5.1214417754689E+15
Circumference
126844329.22918
Perimeter
80751608
Area
407551387161604
Diagonal
28550004.804259
Surface area
2445308322969624
Volume
8.2276074639825E+21
Space diagonal
34966471.962221
Perimeter
60563706
Area
1.7647492731477E+14
Altitude
17483235.981111
Surface area
1.7647492731477E+14
Volume
9.6963283845385E+20
Height
9516668.2680863