123985 is an odd 6-digits composite number following 123984
and preceding 123986 . In scientific notation, it is written as 1.23985 × 10^5.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 97920 positive integers (up to 123985) that are relatively prime to 123985.
123985 has 8 divisors, whose sum is 150696
The reverse of 123985 is 589321
Previous prime number is 181
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 28
Digital Root 1
Name
one hundred twenty-three thousand nine hundred eighty-five
Scientific notation
1.23985 × 10^5
Engineering notation
1.23985 × 10^3
Prime Factorization
5 × 181 × 137
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
123985
Product of the distinct prime numbers
The prime factorization of 123985 is 5 × 181 × 137.
Since it has a total of 3 prime factors.
1 , 6 , 50 , 27 , 154 , 633 , 3401 , 4321 , 48530 , 39330 , 776865 , 368008 , 1579411 , 5178396 , 89501993 , 77711180 , 604734591 , 811884878 , 2526140569 , 6408041952
n×2
247970
n×3
371955
n×4
495940
n×5
619925
n÷2
61992.5
n÷3
41328.333333333
n÷3
30996.25
n÷5
24797
n2
15372280225
n3
1905932163696625
n4
2.3630699931593E+20
n5
2.9298523310185E+25
2 √n
352.11503802025
3 √n
49.864298703016
4 √n
18.764728562392
5 √n
10.439358914434
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
-123984
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 123985 can be divided by 8 positive divisors.
The sum of these divisors (counting 123985) is 1, the average is 0.125.
Base
System
Value
2
Binary
11110010001010001
3
Ternary
20022002001
4
Quaternary
132101101
5
Quinary
12431420
6
Senary
2354001
8
Octal
362121
10
Decimal
123985
12
Duodecimal
5b901
16
Hexadecimal
1e451
20
Vigesimal
f9j5
36
Base36
2no1
md5
8f3a708fa945c5fb828b78d5a556580d
sha1
93f2bb50b3ab2d67ad6e043560f6a7063dd6e3b0
sha256
21ed59dd691e40e34bfbc4e1861c37bd0c507495f1989b0a131c74f65c039684
sha512
d6452a2f139ce6e28d4966ab29d5b344559d598cc5603fec262075b9d88ea069192da158230606bd79aab57a2b2291d02194d05151b1067b2235f2fe46ae7a41
ripemd-160
22b21a708afe3670a162e20adaf6a80450fcb005
Diameter
247970
Circumference
779020.73031066
Area
48293442623.784
Volume
7.9835499782798E+15
Surface area
193173770495.13
Circumference
779020.73031066
Perimeter
495940
Area
15372280225
Diagonal
175341.26853083
Surface area
92233681350
Volume
1905932163696625
Space diagonal
214748.31937643
Perimeter
371955
Area
6656392594.4716
Altitude
107374.15968821
Surface area
6656392594.4716
Volume
2.2461625957191E+14
Height
58447.089510276