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12343039 = 79156241
BaseRepresentation
bin101111000101…
…011011111111
3212020002110121
4233011123333
511124434124
61120315411
7206625352
oct57053377
925202417
1012343039
116a70565
124172b67
132732197
1418d4299
15113c2e4
hexbc56ff

12343039 has 4 divisors (see below), whose sum is σ = 12499360. Its totient is φ = 12186720.

The previous prime is 12343033. The next prime is 12343049. The reversal of 12343039 is 93034321.

It is a happy number.

12343039 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93034321 = 417722273.

It is a cyclic number.

It is not a de Polignac number, because 12343039 - 25 = 12343007 is a prime.

It is a super-2 number, since 2×123430392 = 304701223511042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12343033) 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 3 ways as a sum of consecutive naturals, for example, 78042 + ... + 78199.

It is an arithmetic number, because the mean of its divisors is an integer number (3124840).

Almost surely, 212343039 is an apocalyptic number.

12343039 is a deficient number, since it is larger than the sum of its proper divisors (156321).

12343039 is an equidigital number, since it uses as much as digits as its factorization.

12343039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156320.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 12343039 is about 3513.2661442026. The cubic root of 12343039 is about 231.1039492682.

The spelling of 12343039 in words is "twelve million, three hundred forty-three thousand, thirty-nine".

Divisors: 1 79 156241 12343039