12756821 is an odd 8-digits composite number following 12756820
and preceding 12756822 . In scientific notation, it is written as 1.2756821 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 9940320 positive integers (up to 12756821) that are relatively prime to 12756821.
12756821 has 4 divisors, whose sum is 12922572
The reverse of 12756821 is 12865721
Previous prime number is 77
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twelve million seven hundred fifty-six thousand eight hundred twenty-one
Scientific notation
1.2756821 × 10^7
Engineering notation
1.2756821 × 10^6
Prime Factorization
77 × 165673
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12756821
Product of the distinct prime numbers
The prime factorization of 12756821 is 77 × 165673.
Since it has a total of 2 prime factors.
5 , 8 , 97 , 7 , 655 , 890 , 4053 , 9156 , 93413 , 95742 , 159102 , 108340 , 7655820 , 5995708 , 94038873 , 3424553 , 349641742 , 215384186 , 3609865150 , 5583563055
n×2
25513642
n×3
38270463
n×4
51027284
n×5
63784105
n÷2
6378410.5
n÷3
4252273.6666667
n÷3
3189205.25
n÷5
2551364.2
n2
162736482026041
n3
2.0760001713759E+21
n4
2.6483162582212E+28
n5
3.3784096457518E+35
2 √n
3571.6692176068
3 √n
233.65808906179
4 √n
59.763443823183
5 √n
26.372329444534
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12756820
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12756821 can be divided by 4 positive divisors.
The sum of these divisors (counting 12756821) is 1, the average is 0.25.
Base
System
Value
2
Binary
110000101010011101010101
3
Ternary
220000010001212
4
Quaternary
300222131111
5
Quinary
11231204241
6
Senary
1133231205
8
Octal
60523525
10
Decimal
12756821
12
Duodecimal
4332505
16
Hexadecimal
c2a755
20
Vigesimal
3jec11
36
Base36
7lf85
md5
84c42c618e6cee6c5ac78100457d2bdf
sha1
03c7ebbad75aece9b1aa600f972812367ecd3143
sha256
86927e125c9746f294b3dce24057e608f6691e07f69abd3f1b5b81b69656c3c0
sha512
8efe7961a079ef5ea1fc96f2fa705c8b37a4f1291cc28d9864083d31387626121f99f0da830ef374fcd2a709db0ffd7b862d1d332f701320422c392716a9b8ed
ripemd-160
4e6239d1bb6cb8d24e926ad599e7c0101e607769
Diameter
25513642
Circumference
80153470.27352
Area
5.1125173640406E+14
Volume
8.6959291829943E+21
Surface area
2.0450069456162E+15
Circumference
80153470.27352
Perimeter
51027284
Area
162736482026041
Diagonal
18040869.270966
Surface area
976418892156246
Volume
2.0760001713759E+21
Space diagonal
22095462.115062
Perimeter
38270463
Area
70466963778531
Altitude
11047731.057531
Surface area
70466963778531
Volume
2.4465896648739E+20
Height
6013623.090322