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13531006 = 2531071193
BaseRepresentation
bin110011100111…
…011101111110
3221110110001101
4303213131332
511430443011
61202003314
7223003666
oct63473576
927413041
1013531006
117702055
12464653a
132a59b18
141b231a6
1512c42c1
hexce777e

13531006 has 16 divisors (see below), whose sum is σ = 20890224. Its totient is φ = 6570304.

The previous prime is 13530991. The next prime is 13531019. The reversal of 13531006 is 60013531.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10746 + ... + 11938.

It is an arithmetic number, because the mean of its divisors is an integer number (1305639).

Almost surely, 213531006 is an apocalyptic number.

13531006 is a deficient number, since it is larger than the sum of its proper divisors (7359218).

13531006 is a wasteful number, since it uses less digits than its factorization.

13531006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 13531006 is about 3678.4515764109. The cubic root of 13531006 is about 238.2923108469.

Adding to 13531006 its reverse (60013531), we get a palindrome (73544537).

The spelling of 13531006 in words is "thirteen million, five hundred thirty-one thousand, six".

Divisors: 1 2 53 106 107 214 1193 2386 5671 11342 63229 126458 127651 255302 6765503 13531006