123945 is an odd 6-digits composite number following 123944
and preceding 123946 . In scientific notation, it is written as 1.23945 × 10^5.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 66096 positive integers (up to 123945) that are relatively prime to 123945.
123945 has 8 divisors, whose sum is 198336
The reverse of 123945 is 549321
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 24
Digital Root 6
Name
one hundred twenty-three thousand nine hundred forty-five
Scientific notation
1.23945 × 10^5
Engineering notation
1.23945 × 10^3
Prime Factorization
5 × 3 × 8263
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
123945
Product of the distinct prime numbers
The prime factorization of 123945 is 5 × 3 × 8263.
Since it has a total of 3 prime factors.
8 , 1 , 100 , 47 , 584 , 534 , 6117 , 487 , 40362 , 10928 , 633335 , 568260 , 9164382 , 8450609 , 43930436 , 95705339 , 712891935 , 525192012 , 5036877208 , 7186881166
n×2
247890
n×3
371835
n×4
495780
n×5
619725
n÷2
61972.5
n÷3
41315
n÷3
30986.25
n÷5
24789
n2
15362363025
n3
1904088085133625
n4
2.3600219771189E+20
n5
2.92512923954E+25
2 √n
352.05823381935
3 √n
49.858935725014
4 √n
18.763214911612
5 √n
10.438685238983
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
-123944
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 123945 can be divided by 8 positive divisors.
The sum of these divisors (counting 123945) is 1, the average is 0.125.
Base
System
Value
2
Binary
11110010000101001
3
Ternary
20022000120
4
Quaternary
132100221
5
Quinary
12431240
6
Senary
2353453
8
Octal
362051
10
Decimal
123945
12
Duodecimal
5b889
16
Hexadecimal
1e429
20
Vigesimal
f9h5
36
Base36
2nmx
md5
cbd7eb73383aff17d490ae71017393de
sha1
2336000ccfdbb1e9bd31285c872ed81700a9196d
sha256
a2189e1ff748f6bf17f3edc82ac8e373b3a8ed8cd03fb7ac108160a440dbc216
sha512
8869c3a27cbe429c4c73d93b6b7befc3551c2ea5720735e061cdcbc7d3bc5d035eb417beae493117d7bd7bea1002118ee58270f1d9365eb29f89ac5b2949bbba
ripemd-160
7dbac6caa8e05760ad879696589796148c6ae4f1
Diameter
247890
Circumference
778769.40289837
Area
48262286821.119
Volume
7.9758255200582E+15
Surface area
193049147284.48
Circumference
778769.40289837
Perimeter
495780
Area
15362363025
Diagonal
175284.69998833
Surface area
92174178150
Volume
1904088085133625
Space diagonal
214679.03734412
Perimeter
371835
Area
6652098320.9044
Altitude
107339.51867206
Surface area
6652098320.9044
Volume
2.2439893282908E+14
Height
58428.233329444