123909 is an odd 6-digits composite number following 123908
and preceding 123910 . In scientific notation, it is written as 1.23909 × 10^5.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 81600 positive integers (up to 123909) that are relatively prime to 123909.
123909 has 8 divisors, whose sum is 167232
The reverse of 123909 is 909321
Previous prime number is 103
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 24
Digital Root 6
Name
one hundred twenty-three thousand nine hundred nine
Scientific notation
1.23909 × 10^5
Engineering notation
1.23909 × 10^3
Prime Factorization
3 × 103 × 401
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
123909
Product of the distinct prime numbers
The prime factorization of 123909 is 3 × 103 × 401.
Since it has a total of 3 prime factors.
9 , 4 , 45 , 52 , 175 , 194 , 1218 , 7472 , 49742 , 51677 , 843853 , 358111 , 770462 , 7923066 , 27027587 , 20017636 , 248819210 , 531923682 , 8578985799 , 6498829795
n×2
247818
n×3
371727
n×4
495636
n×5
619545
n÷2
61954.5
n÷3
41303
n÷3
30977.25
n÷5
24781.8
n2
15353440281
n3
1902429431778429
n4
2.3572812846223E+20
n5
2.9208836669627E+25
2 √n
352.00710220108
3 √n
49.85410805819
4 √n
18.761852312634
5 √n
10.438078782351
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
-123908
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 123909 can be divided by 8 positive divisors.
The sum of these divisors (counting 123909) is 1, the average is 0.125.
Base
System
Value
2
Binary
11110010000000101
3
Ternary
20021222020
4
Quaternary
132100011
5
Quinary
12431114
6
Senary
2353353
8
Octal
362005
10
Decimal
123909
12
Duodecimal
5b859
16
Hexadecimal
1e405
20
Vigesimal
f9f9
36
Base36
2nlx
md5
97cf1c56205fe102936169ddb5cf6971
sha1
72e810c9e4436eae63a71ba9a4736b4c71b0c3a1
sha256
6f5655ad083b723d5805ab436ff9bacd687f3751a261540a0487bd0ef03a0a9b
sha512
ee046def6308bce4c889a5422a4ef5e8458703c50c55da3c03adb880a3d0963e846f9853387f6fb477311c2adcb28033b7ad3d6d1c57fc88ef8f62edb0c0d511
ripemd-160
cb3aeb45b1e26c9cb6cf8882611c0f0e8a94d796
Diameter
247818
Circumference
778543.20822732
Area
48234255194.119
Volume
7.9688777691308E+15
Surface area
192937020776.48
Circumference
778543.20822732
Perimeter
495636
Area
15353440281
Diagonal
175233.78830009
Surface area
92120641686
Volume
1902429431778429
Space diagonal
214616.68351505
Perimeter
371727
Area
6648234659.4166
Altitude
107308.34175753
Surface area
6648234659.4166
Volume
2.2420345865657E+14
Height
58411.262766696