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13368145 = 571931979
BaseRepresentation
bin110010111111…
…101101010001
3221011011122111
4302333231101
511410240040
61154305321
7221425120
oct62775521
927134574
1013368145
11760075a
124588241
132a0095b
141abdab7
151290dea
hexcbfb51

13368145 has 16 divisors (see below), whose sum is σ = 18437760. Its totient is φ = 9114624.

The previous prime is 13368139. The next prime is 13368149. The reversal of 13368145 is 54186331.

It is a cyclic number.

It is not a de Polignac number, because 13368145 - 221 = 11270993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13368149) 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, 5766 + ... + 7744.

It is an arithmetic number, because the mean of its divisors is an integer number (1152360).

Almost surely, 213368145 is an apocalyptic number.

It is an amenable number.

13368145 is a deficient number, since it is larger than the sum of its proper divisors (5069615).

13368145 is a wasteful number, since it uses less digits than its factorization.

13368145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2184.

The product of its digits is 8640, while the sum is 31.

The square root of 13368145 is about 3656.2473931615. The cubic root of 13368145 is about 237.3324099317.

The spelling of 13368145 in words is "thirteen million, three hundred sixty-eight thousand, one hundred forty-five".

Divisors: 1 5 7 35 193 965 1351 1979 6755 9895 13853 69265 381947 1909735 2673629 13368145