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12344521 = 721911319
BaseRepresentation
bin101111000101…
…110011001001
3212020011111111
4233011303021
511130011041
61120330321
7206632600
oct57056311
925204444
1012344521
116a71692
1241739a1
132732a67
1418d4a37
15113c981
hexbc5cc9

12344521 has 12 divisors (see below), whose sum is σ = 14446080. Its totient is φ = 10517640.

The previous prime is 12344513. The next prime is 12344539. The reversal of 12344521 is 12544321.

It is not a de Polignac number, because 12344521 - 23 = 12344513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12344492 and 12344501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12344551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8700 + ... + 10018.

It is an arithmetic number, because the mean of its divisors is an integer number (1203840).

Almost surely, 212344521 is an apocalyptic number.

It is an amenable number.

12344521 is a deficient number, since it is larger than the sum of its proper divisors (2101559).

12344521 is a wasteful number, since it uses less digits than its factorization.

12344521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1524 (or 1517 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 12344521 is about 3513.4770527214. The cubic root of 12344521 is about 231.1131982694.

Adding to 12344521 its reverse (12544321), we get a palindrome (24888842).

It can be divided in two parts, 123 and 44521, that added together give a palindrome (44644).

The spelling of 12344521 in words is "twelve million, three hundred forty-four thousand, five hundred twenty-one".

Divisors: 1 7 49 191 1319 1337 9233 9359 64631 251929 1763503 12344521