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13520284 = 226155411
BaseRepresentation
bin110011100100…
…110110011100
3221102220100021
4303210312130
511430122114
61201441524
7222630511
oct63446634
927386307
1013520284
1176a4a98
1246402a4
132a54c8b
141b1d308
1512c1024
hexce4d9c

13520284 has 12 divisors (see below), whose sum is σ = 24048808. Its totient is φ = 6649200.

The previous prime is 13520279. The next prime is 13520303. The reversal of 13520284 is 48202531.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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, 27462 + ... + 27949.

Almost surely, 213520284 is an apocalyptic number.

It is an amenable number.

13520284 is a deficient number, since it is larger than the sum of its proper divisors (10528524).

13520284 is a wasteful number, since it uses less digits than its factorization.

13520284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55476 (or 55474 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 13520284 is about 3676.9938808761. The cubic root of 13520284 is about 238.2293530913.

The spelling of 13520284 in words is "thirteen million, five hundred twenty thousand, two hundred eighty-four".

Divisors: 1 2 4 61 122 244 55411 110822 221644 3380071 6760142 13520284