20187871 is an odd 8-digits composite number following 20187870
and preceding 20187872 . In scientific notation, it is written as 2.0187871 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 18324120 positive integers (up to 20187871) that are relatively prime to 20187871.
20187871 has 8 divisors, whose sum is 22057344
The reverse of 20187871 is 17878102
Previous prime number is 983
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million one hundred eighty-seven thousand eight hundred seventy-one
Scientific notation
2.0187871 × 10^7
Engineering notation
2.0187871 × 10^6
Prime Factorization
11 × 983 × 1867
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20187871
Product of the distinct prime numbers
The prime factorization of 20187871 is 11 × 983 × 1867.
Since it has a total of 3 prime factors.
7 , 5 , 62 , 50 , 928 , 183 , 2502 , 172 , 68969 , 98768 , 416250 , 570193 , 7139406 , 6938275 , 24248864 , 83952915 , 229727859 , 593732535 , 9420727897 , 2107268432
n×2
40375742
n×3
60563613
n×4
80751484
n×5
100939355
n÷2
10093935.5
n÷3
6729290.3333333
n÷3
5046967.75
n÷5
4037574.2
n2
407550135512641
n3
8.2275695617617E+21
n4
1.6609711295637E+29
n5
3.3531470898357E+36
2 √n
4493.0914746976
3 √n
272.28904808262
4 √n
67.03052643906
5 √n
28.908003870108
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20187870
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20187871 can be divided by 8 positive divisors.
The sum of these divisors (counting 20187871) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101000000101011011111
3
Ternary
1101222122112221
4
Quaternary
1031000223133
5
Quinary
20132002441
6
Senary
2000410211
8
Octal
115005337
10
Decimal
20187871
12
Duodecimal
6916967
16
Hexadecimal
1340adf
20
Vigesimal
6639db
36
Base36
c0p27
md5
0740ada1b143bbd53bec02687ac95fc4
sha1
2ec5ba242d4002ca0973f0a18aca0dcfd935d767
sha256
5c97ee00b0498f3018a47ba0644c2951b11cbe7417a388a39457f3a9dbb784c1
sha512
91cc05955269477b1390e3fea42a71dc526a41ece126d02f8c6fef769592e810c55d37b245597096444a39c5ac8b30b6eec144cfe8a7db81c4e5cb1f26b96ab8
ripemd-160
c1d30c28671c6b3508856bae4fb8b59805f3cfe3
Diameter
40375742
Circumference
126844134.45044
Area
1.280356511696E+15
Volume
3.4463562789506E+22
Surface area
5.1214260467842E+15
Circumference
126844134.45044
Perimeter
80751484
Area
407550135512641
Diagonal
28549960.963638
Surface area
2445300813075846
Volume
8.2275695617617E+21
Space diagonal
34966418.268646
Perimeter
60563613
Area
1.7647438533487E+14
Altitude
17483209.134323
Surface area
1.7647438533487E+14
Volume
9.6962837163429E+20
Height
9516653.6545462