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231006324 = 223139138493
BaseRepresentation
bin11011100010011…
…10000001110100
3121002200100002210
431301032001310
5433114200244
634531133420
75503343553
oct1561160164
9532610083
10231006324
1110944051a
1265444270
1338b22343
1422973d9a
15154314b9
hexdc4e074

231006324 has 24 divisors (see below), whose sum is σ = 542896480. Its totient is φ = 76447584.

The previous prime is 231006301. The next prime is 231006331. The reversal of 231006324 is 423600132.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 231006324.

It is a congruent number.

It is an unprimeable number.

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, 67579 + ... + 70914.

Almost surely, 2231006324 is an apocalyptic number.

It is an amenable number.

231006324 is an abundant number, since it is smaller than the sum of its proper divisors (311890156).

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

231006324 is a wasteful number, since it uses less digits than its factorization.

231006324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138639 (or 138637 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 231006324 is about 15198.8921964727. The cubic root of 231006324 is about 613.5848431577.

Adding to 231006324 its reverse (423600132), we get a palindrome (654606456).

The spelling of 231006324 in words is "two hundred thirty-one million, six thousand, three hundred twenty-four".

Divisors: 1 2 3 4 6 12 139 278 417 556 834 1668 138493 276986 415479 553972 830958 1661916 19250527 38501054 57751581 77002108 115503162 231006324