661839 is an odd 6-digits composite number following 661838
and preceding 661840 . In scientific notation, it is written as 6.61839 × 10^5.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 441224 positive integers (up to 661839) that are relatively prime to 661839.
661839 has 4 divisors, whose sum is 882456
The reverse of 661839 is 938166
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 33
Digital Root 6
Name
six hundred sixty-one thousand eight hundred thirty-nine
Scientific notation
6.61839 × 10^5
Engineering notation
6.61839 × 10^3
Prime Factorization
3 × 220613
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
661839
Product of the distinct prime numbers
The prime factorization of 661839 is 3 × 220613.
Since it has a total of 2 prime factors.
3 , 7 , 81 , 30 , 519 , 558 , 576 , 4697 , 23840 , 18215 , 855624 , 633569 , 7598763 , 2073497 , 74005369 , 64304546 , 786615465 , 385765654 , 2026317019 , 9065160977
n×2
1323678
n×3
1985517
n×4
2647356
n×5
3309195
n÷2
330919.5
n÷3
220613
n÷3
165459.75
n÷5
132367.8
n2
438030861921
n3
289905907622932719
n4
1.9187103599525E+23
n5
1.2698773459206E+29
2 √n
813.53487939977
3 √n
87.146667651806
4 √n
28.522532836334
5 √n
14.593197866357
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
-661838
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 661839 can be divided by 4 positive divisors.
The sum of these divisors (counting 661839) is 1, the average is 0.25.
Base
System
Value
2
Binary
10100001100101001111
3
Ternary
1020121212120
4
Quaternary
2201211033
5
Quinary
132134324
6
Senary
22104023
8
Octal
2414517
10
Decimal
661839
12
Duodecimal
27b013
16
Hexadecimal
a194f
20
Vigesimal
42ebj
36
Base36
e6of
md5
31765d6d9be1d1eff577a1d996cdda21
sha1
1309e01a4ec81bafebb7bcbb9e0e7ed3da058703
sha256
e2a2a5073f334dbf8ea4eb7f4d1c6be1d800c64b46eacf6953665d848557e461
sha512
bee86d3384e1840420651150b77a3832f1884653a0d38039bd4686c0bb763fbabc3fb8e590958e4e92116cc6eb3f9ed53a6df48cae814c040ad0a219e6034254
ripemd-160
4ee93dd9f6561baef1f3d871b6922ac7c2232297
Diameter
1323678
Circumference
4158457.0805184
Area
1376114537856.6
Volume
1.2143550261606E+18
Surface area
5504458151426.5
Circumference
4158457.0805184
Perimeter
2647356
Area
438030861921
Diagonal
935981.68990745
Surface area
2628185171526
Volume
289905907622932719
Space diagonal
1146338.7744306
Perimeter
1985517
Area
189672927032.59
Altitude
573169.38721529
Surface area
189672927032.59
Volume
3.4165738864369E+16
Height
311993.89663582