12921887 is an odd 8-digits composite number following 12921886
and preceding 12921888 . In scientific notation, it is written as 1.2921887 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 10792320 positive integers (up to 12921887) that are relatively prime to 12921887.
12921887 has 8 divisors, whose sum is 13719456
The reverse of 12921887 is 78812921
Previous prime number is 473
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twelve million nine hundred twenty-one thousand eight hundred eighty-seven
Scientific notation
1.2921887 × 10^7
Engineering notation
1.2921887 × 10^6
Prime Factorization
17 × 473 × 1607
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12921887
Product of the distinct prime numbers
The prime factorization of 12921887 is 17 × 473 × 1607.
Since it has a total of 3 prime factors.
5 , 4 , 46 , 37 , 751 , 440 , 3665 , 8567 , 57111 , 58471 , 426292 , 236899 , 9266401 , 7984459 , 64620534 , 7137493 , 727743889 , 179542414 , 8108155448 , 1001398134
n×2
25843774
n×3
38765661
n×4
51687548
n×5
64609435
n÷2
6460943.5
n÷3
4307295.6666667
n÷3
3230471.75
n÷5
2584377.4
n2
166975163640769
n3
2.1576341963725E+21
n4
2.7880705272862E+28
n5
3.6027132301622E+35
2 √n
3594.7026302603
3 √n
234.66157412797
4 √n
59.955839000553
5 √n
26.44022750855
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
-12921886
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 12921887 can be divided by 8 positive divisors.
The sum of these divisors (counting 12921887) is 1, the average is 0.125.
Base
System
Value
2
Binary
110001010010110000011111
3
Ternary
220022111111102
4
Quaternary
301102300133
5
Quinary
11302000022
6
Senary
1140543315
8
Octal
61226037
10
Decimal
12921887
12
Duodecimal
43b1b3b
16
Hexadecimal
c52c1f
20
Vigesimal
40f4e7
36
Base36
7oylb
md5
bd40de8ca97e32f7209b9f867205aac3
sha1
2606c46fb7116de118d0e00fcabce1436e41792e
sha256
5a7f22b33e3fc98c0b6e60c881ebe91706bb8aced3d412eabe3b55ef7a9b87a8
sha512
3740a71a67c0dc1fbcdb0df51dead7e8d456dcf44b50cdae8e291edee4e111e650930fcfb66cedf4a7ef8fbb177dee432cfe5e4d25fe9ded74239baeee54dafb
ripemd-160
1e4f7d38ae771ebf6c5ffd9933422eaa9a2a36b4
Diameter
25843774
Circumference
81190610.539435
Area
5.2456794742579E+14
Volume
9.0378769872774E+21
Surface area
2.0982717897032E+15
Circumference
81190610.539435
Perimeter
51687548
Area
166975163640769
Diagonal
18274307.846853
Surface area
1001850981844614
Volume
2.1576341963725E+21
Space diagonal
22381364.813664
Perimeter
38765661
Area
72302366756985
Altitude
11190682.406832
Surface area
72302366756985
Volume
2.5427962859583E+20
Height
6091435.9489509