1661564842 is an even 10-digits composite number following 1661564841
and preceding 1661564843 . In scientific notation, it is written as 1.661564842 × 10^9.
The sum of its digits is 43. It has a total of 4 prime factors and 16 positive divisors.
There are 711818640 positive integers (up to 1661564842) that are relatively prime to 1661564842.
1661564842 has 16 divisors, whose sum is 2849519232
The reverse of 1661564842 is 2484651661
Previous prime number is 2693
Is Prime? no
Number parity even
Number length 10
Sum of Digits 43
Digital Root 7
Name
one billion six hundred sixty-one million five hundred sixty-four thousand eight hundred forty-two
Scientific notation
1.661564842 × 10^9
Engineering notation
1.661564842 × 10^9
Prime Factorization
2 × 7 × 2693 × 44071
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1661564842
Product of the distinct prime numbers
The prime factorization of 1661564842 is 2 × 7 × 2693 × 44071.
Since it has a total of 4 prime factors.
10 , 5 , 70 , 20 , 996 , 359 , 7034 , 8314 , 61034 , 27181 , 680440 , 608198 , 5609461 , 2127580 , 41768811 , 6182856 , 493683199 , 838333741 , 8328076656 , 7907335029
n×2
3323129684
n×3
4984694526
n×4
6646259368
n×5
8307824210
n÷2
830782421
n÷3
553854947.33333
n÷3
415391210.5
n÷5
332312968.4
n2
2760797724170484964
n3
4.5872444343553E+27
n4
7.6220040737849E+36
n5
1.2664453994582E+46
2 √n
40762.296819487
3 √n
1184.4200885799
4 √n
201.89674791707
5 √n
69.839875873784
1 , 2 , 7 , 14 , 2693 , 5386 , 18851 , 37702 , 44071 , 88142 , 308497 , 616994 , 118683203 , 237366406 , 830782421 , 1661564842
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
-1661564841
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 1661564842 can be divided by 16 positive divisors.
The sum of these divisors (counting 1661564842) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100011000010010111011110101010
3
Ternary
11021210112020110121
4
Quaternary
1203002113132222
5
Quinary
11400330033332
6
Senary
432513033454
8
Octal
14302273652
10
Decimal
1661564842
12
Duodecimal
3a455588a
16
Hexadecimal
630977aa
20
Vigesimal
15j4fc22
36
Base36
rh93my
md5
8274381758cb4f38bb1650a70c7b61a1
sha1
39eea330ff6c56b8d5adcc11c71bfd1e7f77ff4e
sha256
04ce2fe19d8e2d73e21f44b9ae25d6d1e522a1691ab17ede7933f1219ed82038
sha512
a141bca9c1d26eb9190b903e2d38a9eb83d68a10b8c9fea174a9807f3b47689530680c7a3e052cdbed5b17657aa5e6907b027f09e2e028203d527198f4ecd501
ripemd-160
f8c9b6bdeb909c5191d88ebb0d9e351d3dff180f
Diameter
3323129684
Circumference
10439919802.181
Area
8.6733018483014E+18
Volume
1.9215004553588E+28
Surface area
3.4693207393206E+19
Circumference
10439919802.181
Perimeter
6646259368
Area
2760797724170484964
Diagonal
2349807534.3187
Surface area
1.6564786345023E+19
Volume
4.5872444343553E+27
Space diagonal
2877914726.4142
Perimeter
4984694526
Area
1.195460481921E+18
Altitude
1438957363.2071
Surface area
1.195460481921E+18
Volume
5.4061194108215E+26
Height
783269178.10624