Search a number
-
+
12144713 = 723241313
BaseRepresentation
bin101110010101…
…000001001001
3211212000102012
4232111001021
511102112323
61112145305
7205141220
oct56250111
924760365
1012144713
116945559
124098235
132692b29
141881cb7
1510ed678
hexb95049

12144713 has 16 divisors (see below), whose sum is σ = 14589696. Its totient is φ = 9884160.

The previous prime is 12144709. The next prime is 12144739. The reversal of 12144713 is 31744121.

It is a happy number.

12144713 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12144713 - 22 = 12144709 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12144793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38645 + ... + 38957.

It is an arithmetic number, because the mean of its divisors is an integer number (911856).

Almost surely, 212144713 is an apocalyptic number.

It is an amenable number.

12144713 is a deficient number, since it is larger than the sum of its proper divisors (2444983).

12144713 is a wasteful number, since it uses less digits than its factorization.

12144713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584.

The product of its digits is 672, while the sum is 23.

The square root of 12144713 is about 3484.9265415501. The cubic root of 12144713 is about 229.8594793825.

Adding to 12144713 its reverse (31744121), we get a palindrome (43888834).

The spelling of 12144713 in words is "twelve million, one hundred forty-four thousand, seven hundred thirteen".

Divisors: 1 7 23 161 241 313 1687 2191 5543 7199 38801 50393 75433 528031 1734959 12144713