12921389 is an odd 8-digits composite number following 12921388
and preceding 12921390 . In scientific notation, it is written as 1.2921389 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 11542320 positive integers (up to 12921389) that are relatively prime to 12921389.
12921389 has 8 divisors, whose sum is 14364672
The reverse of 12921389 is 98312921
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twelve million nine hundred twenty-one thousand three hundred eighty-nine
Scientific notation
1.2921389 × 10^7
Engineering notation
1.2921389 × 10^6
Prime Factorization
13 × 31 × 32063
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12921389
Product of the distinct prime numbers
The prime factorization of 12921389 is 13 × 31 × 32063.
Since it has a total of 3 prime factors.
4 , 8 , 68 , 75 , 411 , 27 , 3025 , 2971 , 92208 , 87690 , 807312 , 855171 , 3060492 , 5642287 , 15226570 , 27055988 , 842844625 , 559989384 , 9199922460 , 8860053321
n×2
25842778
n×3
38764167
n×4
51685556
n×5
64606945
n÷2
6460694.5
n÷3
4307129.6666667
n÷3
3230347.25
n÷5
2584277.8
n2
166962293689321
n3
2.157384745092E+21
n4
2.7876407513999E+28
n5
3.6020190541091E+35
2 √n
3594.633360998
3 √n
234.65855952787
4 √n
59.955261328744
5 √n
26.440023708033
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
-12921388
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 12921389 can be divided by 8 positive divisors.
The sum of these divisors (counting 12921389) is 1, the average is 0.125.
Base
System
Value
2
Binary
110001010010101000101101
3
Ternary
220022110210222
4
Quaternary
301102220231
5
Quinary
11301441024
6
Senary
1140541125
8
Octal
61225055
10
Decimal
12921389
12
Duodecimal
43b17a5
16
Hexadecimal
c52a2d
20
Vigesimal
40f399
36
Base36
7oy7h
md5
d04d9c4b1f95b55b0201260fd12f9b19
sha1
3913d372dea957ea91319c9ac28f376528383151
sha256
f66002b1c503e64d268e7d79738cd88ff0b9c410cd0c9cc6b05c21dedc9abd38
sha512
6fe8c657684000f828cffaddf0f6a42155c625994c20ca54b737d8d0ad95fdf0fb644d7779cea6c8043a61041777d8e3aa9e281d6d3b9f41c2d77144619c720a
ripemd-160
4ce7fdfef3f7c0ddae7197efbdaab79969f60a13
Diameter
25842778
Circumference
81187481.513152
Area
5.2452751528087E+14
Volume
9.0368320881968E+21
Surface area
2.0981100611235E+15
Circumference
81187481.513152
Perimeter
51685556
Area
166962293689321
Diagonal
18273603.568499
Surface area
1001773762135926
Volume
2.157384745092E+21
Space diagonal
22380502.252362
Perimeter
38764167
Area
72296793904535
Altitude
11190251.126181
Surface area
72296793904535
Volume
2.5425023048049E+20
Height
6091201.1894995