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12303423 = 3211124277
BaseRepresentation
bin101110111011…
…110000111111
3212011002010100
4232323300333
511122202143
61115412143
7206402016
oct56736077
925132110
1012303423
116a43820
124154053
13271a142
1418c3a7d
1511306d3
hexbbbc3f

12303423 has 12 divisors (see below), whose sum is σ = 19387368. Its totient is φ = 7456560.

The previous prime is 12303419. The next prime is 12303437. The reversal of 12303423 is 32430321.

It is not a de Polignac number, because 12303423 - 22 = 12303419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12303396 and 12303405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12303323) 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, 62040 + ... + 62237.

It is an arithmetic number, because the mean of its divisors is an integer number (1615614).

Almost surely, 212303423 is an apocalyptic number.

12303423 is a deficient number, since it is larger than the sum of its proper divisors (7083945).

12303423 is a wasteful number, since it uses less digits than its factorization.

12303423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124294 (or 124291 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 12303423 is about 3507.6235544881. The cubic root of 12303423 is about 230.8564352220.

Adding to 12303423 its reverse (32430321), we get a palindrome (44733744).

The spelling of 12303423 in words is "twelve million, three hundred three thousand, four hundred twenty-three".

Divisors: 1 3 9 11 33 99 124277 372831 1118493 1367047 4101141 12303423