12921387 is an odd 8-digits composite number following 12921386
and preceding 12921388 . In scientific notation, it is written as 1.2921387 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 8160840 positive integers (up to 12921387) that are relatively prime to 12921387.
12921387 has 4 divisors, whose sum is 13148136
The reverse of 12921387 is 78312921
Previous prime number is 57
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twelve million nine hundred twenty-one thousand three hundred eighty-seven
Scientific notation
1.2921387 × 10^7
Engineering notation
1.2921387 × 10^6
Prime Factorization
57 × 226691
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12921387
Product of the distinct prime numbers
The prime factorization of 12921387 is 57 × 226691.
Since it has a total of 2 prime factors.
8 , 5 , 39 , 57 , 8 , 711 , 7282 , 8537 , 45523 , 64100 , 282422 , 980274 , 591514 , 2539264 , 33375507 , 6586089 , 240163516 , 315858006 , 6640397897 , 1767236806
n×2
25842774
n×3
38764161
n×4
51685548
n×5
64606935
n÷2
6460693.5
n÷3
4307129
n÷3
3230346.75
n÷5
2584277.4
n2
166962242003769
n3
2.1573837433184E+21
n4
2.7876390254925E+28
n5
3.6020162664692E+35
2 √n
3594.6330828055
3 √n
234.65854742089
4 √n
59.955259008744
5 √n
26.440022889544
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
-12921386
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 12921387 can be divided by 4 positive divisors.
The sum of these divisors (counting 12921387) is 1, the average is 0.25.
Base
System
Value
2
Binary
110001010010101000101011
3
Ternary
220022110210220
4
Quaternary
301102220223
5
Quinary
11301441022
6
Senary
1140541123
8
Octal
61225053
10
Decimal
12921387
12
Duodecimal
43b17a3
16
Hexadecimal
c52a2b
20
Vigesimal
40f397
36
Base36
7oy7f
md5
0b421c3851e70b6f211f392d002db6ca
sha1
6d1ee61570220af5d3acf68b83ddaeb698519111
sha256
377bb2731ec7c4d38678982766c136d61f3f51d803f333aac09012d195274564
sha512
656c3f150fc22acec54cdf6adf5077906cf7db839737a57d2390d34e7d706b6c2de8a807ec9fe099d3aea082f9ef67c76e1dcf3091433156cf399ad6a2acd5ff
ripemd-160
403453df1902004238be7357c0254596a761cc8d
Diameter
25842774
Circumference
81187468.946781
Area
5.2452735290592E+14
Volume
9.0368278919773E+21
Surface area
2.0981094116237E+15
Circumference
81187468.946781
Perimeter
51685548
Area
166962242003769
Diagonal
18273600.740071
Surface area
1001773452022614
Volume
2.1573837433184E+21
Space diagonal
22380498.78826
Perimeter
38764161
Area
72296771524035
Altitude
11190249.39413
Surface area
72296771524035
Volume
2.5425011242034E+20
Height
6091200.2466905