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13088530 = 2571319757
BaseRepresentation
bin110001111011…
…011100010010
3220121222002101
4301323130102
511322313110
61144311014
7216151660
oct61733422
926558071
1013088530
11742a674
12447246a
1329335c0
141a49c30
15123813a
hexc7b712

13088530 has 64 divisors (see below), whose sum is σ = 30562560. Its totient is φ = 3919104.

The previous prime is 13088507. The next prime is 13088533. The reversal of 13088530 is 3588031.

It is not an unprimeable number, because it can be changed into a prime (13088533) 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 31 ways as a sum of consecutive naturals, for example, 16912 + ... + 17668.

It is an arithmetic number, because the mean of its divisors is an integer number (477540).

Almost surely, 213088530 is an apocalyptic number.

13088530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13088530 is an abundant number, since it is smaller than the sum of its proper divisors (17474030).

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

13088530 is a wasteful number, since it uses less digits than its factorization.

13088530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 13088530 is about 3617.8073469990. The cubic root of 13088530 is about 235.6660146902. Note that the first 3 decimals are identical.

The spelling of 13088530 in words is "thirteen million, eighty-eight thousand, five hundred thirty".

Divisors: 1 2 5 7 10 13 14 19 26 35 38 65 70 91 95 130 133 182 190 247 266 455 494 665 757 910 1235 1330 1514 1729 2470 3458 3785 5299 7570 8645 9841 10598 14383 17290 19682 26495 28766 49205 52990 68887 71915 98410 100681 137774 143830 186979 201362 344435 373958 503405 688870 934895 1006810 1308853 1869790 2617706 6544265 13088530