12389985 is an odd 8-digits composite number following 12389984
and preceding 12389986 . In scientific notation, it is written as 1.2389985 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 6320160 positive integers (up to 12389985) that are relatively prime to 12389985.
12389985 has 16 divisors, whose sum is 17239680
The reverse of 12389985 is 58998321
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twelve million three hundred eighty-nine thousand nine hundred eighty-five
Scientific notation
1.2389985 × 10^7
Engineering notation
1.2389985 × 10^6
Prime Factorization
9 × 5 × 23 × 11971
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
12389985
Product of the distinct prime numbers
The prime factorization of 12389985 is 9 × 5 × 23 × 11971.
Since it has a total of 4 prime factors.
1 , 8 , 99 , 72 , 988 , 69 , 6169 , 336 , 44580 , 50532 , 145586 , 822953 , 8105959 , 4393686 , 6849521 , 24818340 , 593011024 , 27121834 , 5653180455 , 814081204
n×2
24779970
n×3
37169955
n×4
49559940
n×5
61949925
n÷2
6194992.5
n÷3
4129995
n÷3
3097496.25
n÷5
2477997
n2
153511728300225
n3
1.9020080109639E+21
n4
2.3565850725722E+28
n5
2.9198053700394E+35
2 √n
3519.9410506428
3 √n
231.39657520292
4 √n
59.329091099078
5 √n
26.218881223145
1 , 5 , 9 , 23 , 45 , 115 , 207 , 1035 , 11971 , 59855 , 107739 , 275333 , 538695 , 1376665 , 2477997 , 12389985
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12389984
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12389985 can be divided by 16 positive divisors.
The sum of these divisors (counting 12389985) is 1, the average is 0.0625.
Base
System
Value
2
Binary
101111010000111001100001
3
Ternary
212022110212100
4
Quaternary
233100321201
5
Quinary
11132434420
6
Senary
1121321013
8
Octal
57207141
10
Decimal
12389985
12
Duodecimal
4196169
16
Hexadecimal
bd0e61
20
Vigesimal
3h8ej5
36
Base36
7dk69
md5
e7c34b1f34e0850d67aff5da9e10e5a5
sha1
83845e6da602474b7c1f84b1a09ad1fbabc2e9ce
sha256
9fe41f7c381ca2b9d6baf427cfc71779115e7c94bd8a220c209d07025f16d7a1
sha512
5470adc45d060d4e59efac4d86191f386afffd7d187e5df597ddd7ed2d37a94491fa76242b6af7c7dcdb50e9d96b26a476eee5fabbfc3952c9fc7019b149eb76
ripemd-160
c1c5a81d23f8bfb5c96ed99a57fdbd8835ac21aa
Diameter
24779970
Circumference
77848571.708175
Area
4.8227131786786E+14
Volume
7.9671125257507E+21
Surface area
1.9290852714714E+15
Circumference
77848571.708175
Perimeter
49559940
Area
153511728300225
Diagonal
17522084.824599
Surface area
921070369801350
Volume
1.9020080109639E+21
Space diagonal
21460083.525016
Perimeter
37169955
Area
66472528243425
Altitude
10730041.762508
Surface area
66472528243425
Volume
2.2415379373728E+20
Height
5840694.9415331