20171281 is an odd 8-digits composite number following 20171280
and preceding 20171282 . In scientific notation, it is written as 2.0171281 × 10^7.
The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors.
There are 18509952 positive integers (up to 20171281) that are relatively prime to 20171281.
20171281 has 8 divisors, whose sum is 21850920
The reverse of 20171281 is 18217102
Previous prime number is 173
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million one hundred seventy-one thousand two hundred eighty-one
Scientific notation
2.0171281 × 10^7
Engineering notation
2.0171281 × 10^6
Prime Factorization
13 × 173 × 8969
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20171281
Product of the distinct prime numbers
The prime factorization of 20171281 is 13 × 173 × 8969.
Since it has a total of 3 prime factors.
2 , 5 , 13 , 13 , 679 , 730 , 8791 , 9113 , 91412 , 45584 , 72294 , 885902 , 284070 , 5270598 , 92876674 , 32408695 , 201841089 , 142970763 , 6385980141 , 9102665240
n×2
40342562
n×3
60513843
n×4
80685124
n×5
100856405
n÷2
10085640.5
n÷3
6723760.3333333
n÷3
5042820.25
n÷5
4034256.2
n2
406880577180961
n3
8.2073024557594E+21
n4
1.6555180408711E+29
n5
3.3393919602981E+36
2 √n
4491.2449276342
3 √n
272.2144403594
4 √n
67.016751097276
5 √n
28.903251100418
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
-20171280
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 20171281 can be divided by 8 positive divisors.
The sum of these divisors (counting 20171281) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111100101000010001
3
Ternary
1101221210210111
4
Quaternary
1030330220101
5
Quinary
20130440111
6
Senary
2000201321
8
Octal
114745021
10
Decimal
20171281
12
Duodecimal
6909241
16
Hexadecimal
133ca11
20
Vigesimal
661841
36
Base36
c0c9d
md5
a9741be89fad2c040b67c2ea7e2ece97
sha1
87ef2f0a9af92a8a901ab832ec3c106b78055ebc
sha256
a123b6b5821afa7e2d5b9bc022f09e144e074c089a087b3a74eb8346b2cbaa25
sha512
0c528fe78d76c44cebf8217fd0a3c1bab9d79c138279deac64ca55fdc963e765ea064b5a093db62fb4ba5b161b1c68b0181d005a3efb3e3a88e6bf5626eac209
ripemd-160
e1003193491dd77753f462e9128802ffc974172e
Diameter
40342562
Circumference
126739896.40619
Area
1.2782530321601E+15
Volume
3.4378668134404E+22
Surface area
5.1130121286403E+15
Circumference
126739896.40619
Perimeter
80685124
Area
406880577180961
Diagonal
28526499.160639
Surface area
2441283463085766
Volume
8.2073024557594E+21
Space diagonal
34937683.545749
Perimeter
60513843
Area
1.7618445807259E+14
Altitude
17468841.772874
Surface area
1.7618445807259E+14
Volume
9.6723987028607E+20
Height
9508833.0535462