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12403413 = 3211125287
BaseRepresentation
bin101111010100…
…001011010101
3212100011021200
4233110023111
511133402123
61121503113
7210266361
oct57241325
925304250
1012403413
117001960
1241a1a99
1327537c9
14190c2a1
151150143
hexbd42d5

12403413 has 12 divisors (see below), whose sum is σ = 19544928. Its totient is φ = 7517160.

The previous prime is 12403397. The next prime is 12403423. The reversal of 12403413 is 31430421.

It is not a de Polignac number, because 12403413 - 24 = 12403397 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12403423) 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, 62545 + ... + 62742.

It is an arithmetic number, because the mean of its divisors is an integer number (1628744).

Almost surely, 212403413 is an apocalyptic number.

It is an amenable number.

12403413 is a deficient number, since it is larger than the sum of its proper divisors (7141515).

12403413 is a wasteful number, since it uses less digits than its factorization.

12403413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125304 (or 125301 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 12403413 is about 3521.8479524250. The cubic root of 12403413 is about 231.4801392369.

Adding to 12403413 its reverse (31430421), we get a palindrome (43833834).

The spelling of 12403413 in words is "twelve million, four hundred three thousand, four hundred thirteen".

Divisors: 1 3 9 11 33 99 125287 375861 1127583 1378157 4134471 12403413