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13522490 = 251971171
BaseRepresentation
bin110011100101…
…011000111010
3221110000100222
4303211120322
511430204430
61201500042
7222640112
oct63453072
927400328
1013522490
1176a6713
124641622
132a55c97
141b20042
1512c19e5
hexce563a

13522490 has 16 divisors (see below), whose sum is σ = 25621920. Its totient is φ = 5124240.

The previous prime is 13522489. The next prime is 13522493. The reversal of 13522490 is 9422531.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13522493) 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 7 ways as a sum of consecutive naturals, for example, 35396 + ... + 35775.

It is an arithmetic number, because the mean of its divisors is an integer number (1601370).

Almost surely, 213522490 is an apocalyptic number.

13522490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13522490 is a deficient number, since it is larger than the sum of its proper divisors (12099430).

13522490 is a wasteful number, since it uses less digits than its factorization.

13522490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71197.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 13522490 is about 3677.2938419441. The cubic root of 13522490 is about 238.2423090660.

The spelling of 13522490 in words is "thirteen million, five hundred twenty-two thousand, four hundred ninety".

Divisors: 1 2 5 10 19 38 95 190 71171 142342 355855 711710 1352249 2704498 6761245 13522490