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13310631 = 327997193
BaseRepresentation
bin110010110001…
…101010100111
3221001020202100
4302301222213
511401420011
61153143143
7221065335
oct62615247
927036670
1013310631
117571524
12455aab3
1329b0719
141aa6b55
15127dd56
hexcb1aa7

13310631 has 24 divisors (see below), whose sum is σ = 19772480. Its totient is φ = 8626176.

The previous prime is 13310611. The next prime is 13310641. The reversal of 13310631 is 13601331.

13310631 is a `hidden beast` number, since 1 + 3 + 31 + 0 + 631 = 666.

It is not a de Polignac number, because 13310631 - 210 = 13309607 is a prime.

It is a super-2 number, since 2×133106312 = 354345795236322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13310611) 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 23 ways as a sum of consecutive naturals, for example, 68871 + ... + 69063.

Almost surely, 213310631 is an apocalyptic number.

13310631 is a deficient number, since it is larger than the sum of its proper divisors (6461849).

13310631 is a wasteful number, since it uses less digits than its factorization.

13310631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 13310631 is about 3648.3737473017. The cubic root of 13310631 is about 236.9915608809.

Adding to 13310631 its reverse (13601331), we get a palindrome (26911962).

The spelling of 13310631 in words is "thirteen million, three hundred ten thousand, six hundred thirty-one".

Divisors: 1 3 9 79 97 193 237 291 579 711 873 1737 7663 15247 18721 22989 45741 56163 68967 137223 168489 1478959 4436877 13310631