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13261088 = 2517191283
BaseRepresentation
bin110010100101…
…100100100000
3220221201210102
4302211210200
511343323323
61152121532
7220501031
oct62454440
926851712
1013261088
117538285
1245362a8
132993cc9
141a92a88
15126e328
hexca5920

13261088 has 48 divisors (see below), whose sum is σ = 29121120. Its totient is φ = 5907456.

The previous prime is 13261063. The next prime is 13261099. The reversal of 13261088 is 88016231.

It is a self number, because there is not a number n which added to its sum of digits gives 13261088.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9695 + ... + 10977.

It is an arithmetic number, because the mean of its divisors is an integer number (606690).

Almost surely, 213261088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13261088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14560560).

13261088 is an abundant number, since it is smaller than the sum of its proper divisors (15860032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13261088 is a wasteful number, since it uses less digits than its factorization.

13261088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329 (or 1321 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 13261088 is about 3641.5776800722. The cubic root of 13261088 is about 236.6971628581.

The spelling of 13261088 in words is "thirteen million, two hundred sixty-one thousand, eighty-eight".

Divisors: 1 2 4 8 16 17 19 32 34 38 68 76 136 152 272 304 323 544 608 646 1283 1292 2566 2584 5132 5168 10264 10336 20528 21811 24377 41056 43622 48754 87244 97508 174488 195016 348976 390032 414409 697952 780064 828818 1657636 3315272 6630544 13261088