20171621 is an odd 8-digits composite number following 20171620
and preceding 20171622 . In scientific notation, it is written as 2.0171621 × 10^7.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 19294572 positive integers (up to 20171621) that are relatively prime to 20171621.
20171621 has 4 divisors, whose sum is 21048672
The reverse of 20171621 is 12617102
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million one hundred seventy-one thousand six hundred twenty-one
Scientific notation
2.0171621 × 10^7
Engineering notation
2.0171621 × 10^6
Prime Factorization
23 × 877027
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20171621
Product of the distinct prime numbers
The prime factorization of 20171621 is 23 × 877027.
Since it has a total of 2 prime factors.
6 , 2 , 24 , 94 , 212 , 56 , 9864 , 8087 , 10627 , 43375 , 109650 , 436710 , 4850712 , 2192455 , 42201520 , 28543647 , 141593643 , 383684464 , 8609033500 , 295278374
n×2
40343242
n×3
60514863
n×4
80686484
n×5
100858105
n÷2
10085810.5
n÷3
6723873.6666667
n÷3
5042905.25
n÷5
4034324.2
n2
406894293767641
n3
8.2077174809435E+21
n4
1.6556296630067E+29
n5
3.3396734078528E+36
2 √n
4491.2827788951
3 √n
272.21596980102
4 √n
67.017033498172
5 √n
28.903348536363
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20171620
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20171621 can be divided by 4 positive divisors.
The sum of these divisors (counting 20171621) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111100101101100101
3
Ternary
1101221211021002
4
Quaternary
1030330231211
5
Quinary
20130442441
6
Senary
2000203045
8
Octal
114745545
10
Decimal
20171621
12
Duodecimal
6909485
16
Hexadecimal
133cb65
20
Vigesimal
661911
36
Base36
c0cit
md5
f71ad02c29b1b9e04c19f97543789552
sha1
46e2e2eb1d4fed4abc5866916144caf4fba93596
sha256
424c0d29b7d8d5269b146aa42b3c3753470f16b6c1953a43705ce62b8a2cb0eb
sha512
39c2be1a2642da6cb80d4366170e12f003c069643f286fed195bcb6f2ee9c240b872b4ae48d3224eef0bf23be49041c6bf8bcb603a3e447ea7cf798fa536a70d
ripemd-160
8c1796bb540245f00f6fc3890797caef2193616c
Diameter
40343242
Circumference
126742032.6892
Area
1.278296124088E+15
Volume
3.438040658783E+22
Surface area
5.1131844963521E+15
Circumference
126742032.6892
Perimeter
80686484
Area
406894293767641
Diagonal
28526979.99325
Surface area
2441365762605846
Volume
8.2077174809435E+21
Space diagonal
34938272.443023
Perimeter
60514863
Area
1.7619039752885E+14
Altitude
17469136.221512
Surface area
1.7619039752885E+14
Volume
9.6728878147309E+20
Height
9508993.3310833