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12383919 = 329471453
BaseRepresentation
bin101111001111…
…011010101111
3212022011112200
4233033122233
511132241134
61121232543
7210155502
oct57173257
925264480
1012383919
116a99249
124192753
132747982
141905139
151149499
hexbcf6af

12383919 has 12 divisors (see below), whose sum is σ = 17919096. Its totient is φ = 8241552.

The previous prime is 12383879. The next prime is 12383929. The reversal of 12383919 is 91938321.

It is not a de Polignac number, because 12383919 - 212 = 12379823 is a prime.

It is a super-2 number, since 2×123839192 = 306722899597122, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12383929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7797 + ... + 9249.

It is an arithmetic number, because the mean of its divisors is an integer number (1493258).

Almost surely, 212383919 is an apocalyptic number.

12383919 is a deficient number, since it is larger than the sum of its proper divisors (5535177).

12383919 is a wasteful number, since it uses less digits than its factorization.

12383919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2406 (or 2403 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 12383919 is about 3519.0792829943. The cubic root of 12383919 is about 231.3588059681.

The spelling of 12383919 in words is "twelve million, three hundred eighty-three thousand, nine hundred nineteen".

Divisors: 1 3 9 947 1453 2841 4359 8523 13077 1375991 4127973 12383919