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12319407 = 3217731103
BaseRepresentation
bin101110111111…
…101010101111
3212011220001100
4232333222233
511123210112
61120014143
7206466432
oct56775257
925156040
1012319407
116a54831
124161353
1327244b9
1418c9819
1511352dc
hexbbfaaf

12319407 has 24 divisors (see below), whose sum is σ = 19116864. Its totient is φ = 7617024.

The previous prime is 12319399. The next prime is 12319427. The reversal of 12319407 is 70491321.

It is not a de Polignac number, because 12319407 - 23 = 12319399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12319427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10618 + ... + 11720.

It is an arithmetic number, because the mean of its divisors is an integer number (796536).

Almost surely, 212319407 is an apocalyptic number.

12319407 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12319407 is a deficient number, since it is larger than the sum of its proper divisors (6797457).

12319407 is a wasteful number, since it uses less digits than its factorization.

12319407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199 (or 1196 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 12319407 is about 3509.9012806630. The cubic root of 12319407 is about 230.9563643895.

The spelling of 12319407 in words is "twelve million, three hundred nineteen thousand, four hundred seven".

Divisors: 1 3 9 17 51 73 153 219 657 1103 1241 3309 3723 9927 11169 18751 56253 80519 168759 241557 724671 1368823 4106469 12319407