12691389 is an odd 8-digits composite number following 12691388
and preceding 12691390 . In scientific notation, it is written as 1.2691389 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 8460924 positive integers (up to 12691389) that are relatively prime to 12691389.
12691389 has 4 divisors, whose sum is 16921856
The reverse of 12691389 is 98319621
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twelve million six hundred ninety-one thousand three hundred eighty-nine
Scientific notation
1.2691389 × 10^7
Engineering notation
1.2691389 × 10^6
Prime Factorization
3 × 4230463
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12691389
Product of the distinct prime numbers
The prime factorization of 12691389 is 3 × 4230463.
Since it has a total of 2 prime factors.
5 , 9 , 44 , 61 , 286 , 638 , 5367 , 9107 , 52096 , 28786 , 502420 , 197192 , 5281595 , 6383666 , 92747837 , 71802746 , 74750396 , 621876541 , 9983699377 , 4574189262
n×2
25382778
n×3
38074167
n×4
50765556
n×5
63456945
n÷2
6345694.5
n÷3
4230463
n÷3
3172847.25
n÷5
2538277.8
n2
161071354749321
n3
2.0442192198806E+21
n4
2.5943981320782E+28
n5
3.2926515915077E+35
2 √n
3562.4975789465
3 √n
233.2579128126
4 √n
59.686661650209
5 √n
26.345220095792
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
-12691388
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 12691389 can be divided by 4 positive divisors.
The sum of these divisors (counting 12691389) is 1, the average is 0.25.
Base
System
Value
2
Binary
110000011010011110111101
3
Ternary
212212210022110
4
Quaternary
300122132331
5
Quinary
11222111024
6
Senary
1132004233
8
Octal
60323675
10
Decimal
12691389
12
Duodecimal
4300679
16
Hexadecimal
c1a7bd
20
Vigesimal
3j6899
36
Base36
7k0ql
md5
2e53d69dfac3a1f6d50acf9fc158c96b
sha1
ab049fea64acd42d65f2ee8f2441ba92ea84e618
sha256
835cd3c265e9cdada2cfc0c25a468e49bc7c7190c6a9d3e3036ed3236914ce96
sha512
b24578e874d6909f1897b4a205c7ba44a52da6d97f818f71a807dad6b7c73002b0de890506a3704331206ce2c2695446044538c1fdee6720a0ed01b1a57794e8
ripemd-160
25df2fdfef63dd59cddbef29557585b3068e3170
Diameter
25382778
Circumference
79742348.892501
Area
5.0602058478422E+14
Volume
8.5628054446721E+21
Surface area
2.0240823391369E+15
Circumference
79742348.892501
Perimeter
50765556
Area
161071354749321
Diagonal
17948334.449153
Surface area
966428128495926
Volume
2.0442192198806E+21
Space diagonal
21982130.566621
Perimeter
38074167
Area
69745942517444
Altitude
10991065.28331
Surface area
69745942517444
Volume
2.4091354543491E+20
Height
5982778.1497176