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13424229 = 3271337443
BaseRepresentation
bin110011001101…
…011001100101
3221021000120200
4303031121211
511414033404
61155421113
7222050460
oct63153145
927230520
1013424229
117639905
1245b4799
132a20340
141ad62d7
1512a2839
hexccd665

13424229 has 48 divisors (see below), whose sum is σ = 24565632. Its totient is φ = 6873984.

The previous prime is 13424221. The next prime is 13424231. The reversal of 13424229 is 92242431.

13424229 is a `hidden beast` number, since 13 + 424 + 229 = 666.

It is not a de Polignac number, because 13424229 - 23 = 13424221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13424221) 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 47 ways as a sum of consecutive naturals, for example, 30082 + ... + 30524.

It is an arithmetic number, because the mean of its divisors is an integer number (511784).

Almost surely, 213424229 is an apocalyptic number.

It is an amenable number.

13424229 is a deficient number, since it is larger than the sum of its proper divisors (11141403).

13424229 is a wasteful number, since it uses less digits than its factorization.

13424229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506 (or 503 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 13424229 is about 3663.9089781270. The cubic root of 13424229 is about 237.6638440989.

It can be divided in two parts, 1342422 and 9, that added together give a palindrome (1342431).

The spelling of 13424229 in words is "thirteen million, four hundred twenty-four thousand, two hundred twenty-nine".

Divisors: 1 3 7 9 13 21 37 39 63 91 111 117 259 273 333 443 481 777 819 1329 1443 2331 3101 3367 3987 4329 5759 9303 10101 16391 17277 27909 30303 40313 49173 51831 114737 120939 147519 213083 344211 362817 639249 1032633 1491581 1917747 4474743 13424229