123456 is an even 6-digits composite number following 123455
and preceding 123457 . In scientific notation, it is written as 1.23456 × 10^5.
The sum of its digits is 21. It has a total of 8 prime factors and 28 positive divisors.
There are 41088 positive integers (up to 123456) that are relatively prime to 123456.
123456 has 28 divisors, whose sum is 327152
The reverse of 123456 is 654321
Previous prime number is 3
Is Prime? no
Number parity even
Number length 6
Sum of Digits 21
Digital Root 3
Name
one hundred twenty-three thousand four hundred fifty-six
Scientific notation
1.23456 × 10^5
Engineering notation
1.23456 × 10^3
Prime Factorization
2 × 2 × 2 × 2 × 2 × 2 × 3 × 643
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
8
Total number of prime factors
rad
Radical
3858
Product of the distinct prime numbers
The prime factorization of 123456 is 2 × 2 × 2 × 2 × 2 × 2 × 3 × 643.
Since it has a total of 8 prime factors.
10 , 5 , 4 , 62 , 967 , 562 , 4332 , 8624 , 45174 , 35726 , 135774 , 113129 , 6732976 , 6501938 , 49376894 , 70140395 , 611991766 , 353606221 , 1891929128 , 6282142607
n×2
246912
n×3
370368
n×4
493824
n×5
617280
n÷2
61728
n÷3
41152
n÷3
30864
n÷5
24691.2
n2
15241383936
n3
1881640295202816
n4
2.3229978428456E+20
n5
2.8678802168634E+25
2 √n
351.36306009596
3 √n
49.79327984674
4 √n
18.744680848069
5 √n
10.430435464098
1 , 2 , 3 , 4 , 6 , 8 , 12 , 16 , 24 , 32 , 48 , 64 , 96 , 192 , 643 , 1286 , 1929 , 2572 , 3858 , 5144 , 7716 , 10288 , 15432 , 20576 , 30864 , 41152 , 61728 , 123456
28 divisors
τ
Total Divisors
28
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-123455
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.035714285714286
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
28
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 123456 can be divided by 28 positive divisors.
The sum of these divisors (counting 123456) is 1, the average is 0.035714285714286.
Base
System
Value
2
Binary
11110001001000000
3
Ternary
20021100110
4
Quaternary
132021000
5
Quinary
12422311
6
Senary
2351320
8
Octal
361100
10
Decimal
123456
12
Duodecimal
5b540
16
Hexadecimal
1e240
20
Vigesimal
f8cg
36
Base36
2n9c
md5
e10adc3949ba59abbe56e057f20f883e
sha1
7c4a8d09ca3762af61e59520943dc26494f8941b
sha256
8d969eef6ecad3c29a3a629280e686cf0c3f5d5a86aff3ca12020c923adc6c92
sha512
ba3253876aed6bc22d4a6ff53d8406c6ad864195ed144ab5c87621b6c233b548baeae6956df346ec8c17f5ea10f35ee3cbc514797ed7ddd3145464e2a0bab413
ripemd-160
d8913df37b24c97f28f840114d05bd110dbb2e44
Diameter
246912
Circumference
775696.92528316
Area
47882219803.879
Volume
7.8817964374769E+15
Surface area
191528879215.52
Circumference
775696.92528316
Perimeter
493824
Area
15241383936
Diagonal
174593.14955633
Surface area
91448303616
Volume
1881640295202816
Space diagonal
213832.06449922
Perimeter
370368
Area
6599712838.704
Altitude
106916.03224961
Surface area
6599712838.704
Volume
2.2175343541529E+14
Height
58197.716518778