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13782226 = 253130021
BaseRepresentation
bin110100100100…
…110011010010
3221221012122211
4310210303102
512012012401
61211222334
7225101263
oct64446322
927835584
1013782226
117863877
1247479aa
132b17283
141b8a96a
151323951
hexd24cd2

13782226 has 8 divisors (see below), whose sum is σ = 21063564. Its totient is φ = 6761040.

The previous prime is 13782217. The next prime is 13782229. The reversal of 13782226 is 62228731.

It can be written as a sum of positive squares in 2 ways, for example, as 13140625 + 641601 = 3625^2 + 801^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (13782229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64905 + ... + 65116.

Almost surely, 213782226 is an apocalyptic number.

13782226 is a deficient number, since it is larger than the sum of its proper divisors (7281338).

13782226 is a wasteful number, since it uses less digits than its factorization.

13782226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130076.

The product of its digits is 8064, while the sum is 31.

The square root of 13782226 is about 3712.4420534198. The cubic root of 13782226 is about 239.7580083971.

The spelling of 13782226 in words is "thirteen million, seven hundred eighty-two thousand, two hundred twenty-six".

Divisors: 1 2 53 106 130021 260042 6891113 13782226