20001605 is an odd 8-digits composite number following 20001604
and preceding 20001606 . In scientific notation, it is written as 2.0001605 × 10^7.
The sum of its digits is 14. It has a total of 4 prime factors and 16 positive divisors.
There are 13280256 positive integers (up to 20001605) that are relatively prime to 20001605.
20001605 has 16 divisors, whose sum is 25190784
The reverse of 20001605 is 50610002
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 14
Digital Root 5
Name
twenty million one thousand six hundred five
Scientific notation
2.0001605 × 10^7
Engineering notation
2.0001605 × 10^6
Prime Factorization
221 × 5 × 23 × 787
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20001605
Product of the distinct prime numbers
The prime factorization of 20001605 is 221 × 5 × 23 × 787.
Since it has a total of 4 prime factors.
1 , 8 , 95 , 26 , 154 , 867 , 8088 , 7508 , 45073 , 7279 , 798484 , 727198 , 47066 , 7167856 , 62756284 , 71181980 , 170859446 , 617798616 , 5407281780 , 5116459353
n×2
40003210
n×3
60004815
n×4
80006420
n×5
100008025
n÷2
10000802.5
n÷3
6667201.6666667
n÷3
5000401.25
n÷5
4000321
n2
400064202576025
n3
8.0019261545656E+21
n4
1.6005136618279E+29
n5
3.2012842060985E+36
2 √n
4472.3153958548
3 √n
271.44902253239
4 √n
66.875372117505
5 √n
28.854461209949
1 , 5 , 23 , 115 , 221 , 787 , 1105 , 3935 , 5083 , 18101 , 25415 , 90505 , 173927 , 869635 , 4000321 , 20001605
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20001604
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20001605 can be divided by 16 positive divisors.
The sum of these divisors (counting 20001605) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100010011001101000101
3
Ternary
1101122012001012
4
Quaternary
1030103031011
5
Quinary
20110022410
6
Senary
1552412005
8
Octal
114231505
10
Decimal
20001605
12
Duodecimal
6847005
16
Hexadecimal
1313345
20
Vigesimal
650405
36
Base36
bwpc5
md5
d33a0b68b5993d11ee3045f75d83ea25
sha1
b9423fc40936eed00e915d3b64042918706bf409
sha256
663bb441051066409d06c77a00b83140c72d085d25d1240f1d89060b8e0c01dd
sha512
e399be292324f4db0b93b47f7563d6d251787e620f56aeeffc491bdf9768a372d0cc33d6bc919bdd8bb3ec44e0d33b6ddb5994834673faf8ceb83263e3630428
ripemd-160
91ad892b6279672dd970c228926c5578c4a9e78a
Diameter
40003210
Circumference
125673790.65601
Area
1.2568387597771E+15
Volume
3.3518389895669E+22
Surface area
5.0273550391084E+15
Circumference
125673790.65601
Perimeter
80006420
Area
400064202576025
Diagonal
28286541.06023
Surface area
2400385215456150
Volume
8.0019261545656E+21
Space diagonal
34643796.092924
Perimeter
60004815
Area
1.732328812878E+14
Altitude
17321898.046462
Surface area
1.732328812878E+14
Volume
9.4303604107456E+20
Height
9428847.0200765