20171639 is an odd 8-digits composite number following 20171638
and preceding 20171640 . In scientific notation, it is written as 2.0171639 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 18948096 positive integers (up to 20171639) that are relatively prime to 20171639.
20171639 has 8 divisors, whose sum is 21399840
The reverse of 20171639 is 93617102
Previous prime number is 769
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred seventy-one thousand six hundred thirty-nine
Scientific notation
2.0171639 × 10^7
Engineering notation
2.0171639 × 10^6
Prime Factorization
17 × 769 × 1543
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20171639
Product of the distinct prime numbers
The prime factorization of 20171639 is 17 × 769 × 1543.
Since it has a total of 3 prime factors.
7 , 6 , 90 , 50 , 844 , 960 , 6908 , 7550 , 73932 , 42631 , 59320 , 933125 , 1546283 , 5639501 , 98155684 , 58860670 , 342460440 , 282656164 , 3355325392 , 5587794227
n×2
40343278
n×3
60514917
n×4
80686556
n×5
100858195
n÷2
10085819.5
n÷3
6723879.6666667
n÷3
5042909.75
n÷5
4034327.8
n2
406895019946321
n3
8.207739453255E+21
n4
1.6556355725712E+29
n5
3.3396883085464E+36
2 √n
4491.2847827765
3 √n
272.21605077098
4 √n
67.017048448708
5 √n
28.9033536947
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
-20171638
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 20171639 can be divided by 8 positive divisors.
The sum of these divisors (counting 20171639) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111100101101110111
3
Ternary
1101221211021202
4
Quaternary
1030330231313
5
Quinary
20130443024
6
Senary
2000203115
8
Octal
114745567
10
Decimal
20171639
12
Duodecimal
690949b
16
Hexadecimal
133cb77
20
Vigesimal
66191j
36
Base36
c0cjb
md5
c0a163e3816838f9c48277f1ff637545
sha1
78588e1d8ee175c6af60af6345d3eee316593e81
sha256
4f1ea9e89e04b754a12942fedf51e9c541c434ce1db41a4b382b230e03e51f05
sha512
10c6902514f7decb9dd203f162c071c593766fc7e18cd51f3c9df78184e752c2e03669ed0ae20f03531a22458225cf037c4a22f53d31abf067a3209aa1d1a134
ripemd-160
2eca8c7af1f589b202da7dd2bf413db6493e43da
Diameter
40343278
Circumference
126742145.78653
Area
1.2782984054456E+15
Volume
3.4380498625233E+22
Surface area
5.1131936217825E+15
Circumference
126742145.78653
Perimeter
80686556
Area
406895019946321
Diagonal
28527005.449094
Surface area
2441370119677926
Volume
8.207739453255E+21
Space diagonal
34938303.619938
Perimeter
60514917
Area
1.7619071197344E+14
Altitude
17469151.809969
Surface area
1.7619071197344E+14
Volume
9.6729137093483E+20
Height
9509001.8163647