12187989 is an odd 8-digits composite number following 12187988
and preceding 12187990 . In scientific notation, it is written as 1.2187989 × 10^7.
The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors.
There are 7386120 positive integers (up to 12187989) that are relatively prime to 12187989.
12187989 has 8 divisors, whose sum is 13023360
The reverse of 12187989 is 98978121
Previous prime number is 27
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twelve million one hundred eighty-seven thousand nine hundred eighty-nine
Scientific notation
1.2187989 × 10^7
Engineering notation
1.2187989 × 10^6
Prime Factorization
33 × 27 × 13679
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12187989
Product of the distinct prime numbers
The prime factorization of 12187989 is 33 × 27 × 13679.
Since it has a total of 3 prime factors.
3 , 10 , 86 , 13 , 589 , 198 , 3419 , 2722 , 65859 , 6886 , 723807 , 335970 , 3831888 , 8518424 , 97091835 , 66870187 , 473100757 , 540016036 , 5181091191 , 7255490531
n×2
24375978
n×3
36563967
n×4
48751956
n×5
60939945
n÷2
6093994.5
n÷3
4062663
n÷3
3046997.25
n÷5
2437597.8
n2
148547075864121
n3
1.8104901266141E+21
n4
2.2066233747781E+28
n5
2.6894301418938E+35
2 √n
3491.1300462744
3 √n
230.13217985096
4 √n
59.085785484111
5 √n
26.132828040387
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
-12187988
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 12187989 can be divided by 8 positive divisors.
The sum of these divisors (counting 12187989) is 1, the average is 0.125.
Base
System
Value
2
Binary
101110011111100101010101
3
Ternary
211221012210000
4
Quaternary
232133211111
5
Quinary
11110003424
6
Senary
1113121513
8
Octal
56374525
10
Decimal
12187989
12
Duodecimal
40b9299
16
Hexadecimal
b9f955
20
Vigesimal
3g39j9
36
Base36
798b9
md5
ecfb4d4cf2a6e91c7ee483286eeaad97
sha1
9607ac3e96231ef20a927bc9927bac3951dfe788
sha256
d246dff00c44e97923b2984d3da33ab4d00a211af33e30a589a9bdc6697b5635
sha512
2d8aff0beb24bbf7a9912c87292a00fc3279bb00f2f33910a1aa1283d04cd8308c648c6de6efe17a5318c4510918e555b96fbe00121201f6be1c40df325139bd
ripemd-160
7ebf673dcc6156149dc7f6a78e2e4d526a0c86e6
Diameter
24375978
Circumference
76579393.408866
Area
4.6667440224697E+14
Volume
7.5837633082235E+21
Surface area
1.8666976089879E+15
Circumference
76579393.408866
Perimeter
48751956
Area
148547075864121
Diagonal
17236419.341854
Surface area
891282455184726
Volume
1.8104901266141E+21
Space diagonal
21110216.190091
Perimeter
36563967
Area
64322770678112
Altitude
10555108.095045
Surface area
64322770678112
Volume
2.1336830763335E+20
Height
5745473.1139514