126 is an even 3-digits composite number following 125
and preceding 127 . In scientific notation, it is written as 1.26 × 10^2.
The sum of its digits is 9. It has a total of 4 prime factors and 12 positive divisors.
There are 36 positive integers (up to 126) that are relatively prime to 126.
126 has 12 divisors, whose sum is 312
The reverse of 126 is 621
Previous prime number is 3
Is Prime? no
Number parity even
Number length 3
Sum of Digits 9
Digital Root 9
Name
one hundred twenty-six
Scientific notation
1.26 × 10^2
Engineering notation
1.26 × 10^0
Prime Factorization
2 × 7 × 3 × 3
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
42
Product of the distinct prime numbers
The prime factorization of 126 is 2 × 7 × 3 × 3.
Since it has a total of 4 prime factors.
5 , 9 , 75 , 56 , 737 , 937 , 2367 , 1759 , 83896 , 74809 , 974802 , 133434 , 4108469 , 4120518 , 18662784 , 30106185 , 647592776 , 95789718 , 3456121287 , 1404243911
n×2
252
n×3
378
n×4
504
n×5
630
n÷2
63
n÷3
42
n÷3
31.5
n÷5
25.2
n2
15876
n3
2000376
n4
252047376
n5
31757969376
2 √n
11.224972160322
3 √n
5.0132979349646
4 √n
3.3503689588345
5 √n
2.6307168652587
1 , 2 , 3 , 6 , 7 , 9 , 14 , 18 , 21 , 42 , 63 , 126
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-125
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 126 can be divided by 12 positive divisors.
The sum of these divisors (counting 126) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1111110
3
Ternary
11200
4
Quaternary
1332
5
Quinary
1001
6
Senary
330
8
Octal
176
10
Decimal
126
12
Duodecimal
a6
16
Hexadecimal
7e
20
Vigesimal
66
36
Base36
3i
md5
069059b7ef840f0c74a814ec9237b6ec
sha1
114d4eefde1dae3983e7a79f04c72feb9a3a7efd
sha256
65a699905c02619370bcf9207f5a477c3d67130ca71ec6f750e07fe8d510b084
sha512
8f38ba1b52fdbe35907eeb02f4cdd923dc608cbb560f1415cbac5858345e8aeaa3f43756602e2ec5f5e7637d65a627ccffa8cd636237110a9e8e207ad70d6bb5
ripemd-160
31baa56da6531251fd31c3c73b604b56b6d41c24
Diameter
252
Circumference
791.68134870463
Area
49875.924968392
Volume
8379155.3946898
Surface area
199503.69987357
Circumference
791.68134870463
Perimeter
504
Area
15876
Diagonal
178.19090885901
Surface area
95256
Volume
2000376
Space diagonal
218.23840175368
Perimeter
378
Area
6874.5096552409
Altitude
109.11920087684
Surface area
6874.5096552409
Volume
235746.57242047
Height
59.39696961967