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13385413 = 61219433
BaseRepresentation
bin110011000011…
…111011000101
3221012001100001
4303003323011
511411313123
61154521301
7221526346
oct63037305
927161301
1013385413
117612728
124596231
132a08782
141ac60cd
1512960ad
hexcc3ec5

13385413 has 4 divisors (see below), whose sum is σ = 13604908. Its totient is φ = 13165920.

The previous prime is 13385401. The next prime is 13385423. The reversal of 13385413 is 31458331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4397409 + 8988004 = 2097^2 + 2998^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13385413 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 (13385423) 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 3 ways as a sum of consecutive naturals, for example, 109656 + ... + 109777.

It is an arithmetic number, because the mean of its divisors is an integer number (3401227).

Almost surely, 213385413 is an apocalyptic number.

It is an amenable number.

13385413 is a deficient number, since it is larger than the sum of its proper divisors (219495).

13385413 is an equidigital number, since it uses as much as digits as its factorization.

13385413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219494.

The product of its digits is 4320, while the sum is 28.

The square root of 13385413 is about 3658.6080686512. The cubic root of 13385413 is about 237.4345555600.

The spelling of 13385413 in words is "thirteen million, three hundred eighty-five thousand, four hundred thirteen".

Divisors: 1 61 219433 13385413