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12245279 = 293153257
BaseRepresentation
bin101110101101…
…100100011111
3212001010100212
4232231210133
511113322104
61114243035
7206040344
oct56554437
925033325
1012245279
116a04072
12412647b
1326c9837
1418aa7cb
15111d36e
hexbad91f

12245279 has 16 divisors (see below), whose sum is σ = 13374720. Its totient is φ = 11182080.

The previous prime is 12245263. The next prime is 12245293. The reversal of 12245279 is 97254221.

12245279 is nontrivially palindromic in base 3.

It is a cyclic number.

It is not a de Polignac number, because 12245279 - 24 = 12245263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12245209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47519 + ... + 47775.

It is an arithmetic number, because the mean of its divisors is an integer number (835920).

Almost surely, 212245279 is an apocalyptic number.

12245279 is a deficient number, since it is larger than the sum of its proper divisors (1129441).

12245279 is a wasteful number, since it uses less digits than its factorization.

With its successor (12245280) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (370).

12245279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370.

The product of its digits is 10080, while the sum is 32.

The square root of 12245279 is about 3499.3255064369. The cubic root of 12245279 is about 230.4921973697.

The spelling of 12245279 in words is "twelve million, two hundred forty-five thousand, two hundred seventy-nine".

Divisors: 1 29 31 53 257 899 1537 1643 7453 7967 13621 47647 231043 395009 422251 12245279