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12678073 = 171939251
BaseRepresentation
bin110000010111…
…001110111001
3212212010001021
4300113032321
511221144243
61131422441
7212522212
oct60271671
925763037
1012678073
11717a251
1242b4a21
13281b825
141980409
1511a66ed
hexc173b9

12678073 has 8 divisors (see below), whose sum is σ = 14130720. Its totient is φ = 11304000.

The previous prime is 12678059. The next prime is 12678079. The reversal of 12678073 is 37087621.

12678073 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12678073 - 25 = 12678041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12678079) 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 7 ways as a sum of consecutive naturals, for example, 19303 + ... + 19948.

It is an arithmetic number, because the mean of its divisors is an integer number (1766340).

Almost surely, 212678073 is an apocalyptic number.

It is an amenable number.

12678073 is a deficient number, since it is larger than the sum of its proper divisors (1452647).

12678073 is a wasteful number, since it uses less digits than its factorization.

12678073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39287.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 12678073 is about 3560.6281749152. The cubic root of 12678073 is about 233.1763050046.

The spelling of 12678073 in words is "twelve million, six hundred seventy-eight thousand, seventy-three".

Divisors: 1 17 19 323 39251 667267 745769 12678073