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13439133 = 324731771
BaseRepresentation
bin110011010001…
…000010011101
3221021210000200
4303101002131
511420023013
61200014113
7222142101
oct63210235
927253020
1013439133
11764a024
124601339
132a27066
141adb901
1512a6e73
hexcd109d

13439133 has 12 divisors (see below), whose sum is σ = 19825728. Its totient is φ = 8768520.

The previous prime is 13439119. The next prime is 13439149. The reversal of 13439133 is 33193431.

It is not a de Polignac number, because 13439133 - 24 = 13439117 is a prime.

It is a super-2 number, since 2×134391332 = 361220591583378, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13439097 and 13439106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13439113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15463 + ... + 16308.

It is an arithmetic number, because the mean of its divisors is an integer number (1652144).

Almost surely, 213439133 is an apocalyptic number.

It is an amenable number.

13439133 is a deficient number, since it is larger than the sum of its proper divisors (6386595).

13439133 is a wasteful number, since it uses less digits than its factorization.

13439133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31824 (or 31821 counting only the distinct ones).

The product of its digits is 2916, while the sum is 27.

The square root of 13439133 is about 3665.9423072383. The cubic root of 13439133 is about 237.7517655201.

The spelling of 13439133 in words is "thirteen million, four hundred thirty-nine thousand, one hundred thirty-three".

Divisors: 1 3 9 47 141 423 31771 95313 285939 1493237 4479711 13439133