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231042462 = 23741134171
BaseRepresentation
bin11011100010101…
…10110110011110
3121002202011200020
431301112312132
5433121324322
634532013010
75503554120
oct1561266636
9532664606
10231042462
11109465692
1265461166
1338b35921
1422983210
151543c05c
hexdc56d9e

231042462 has 32 divisors (see below), whose sum is σ = 540981504. Its totient is φ = 64401600.

The previous prime is 231042433. The next prime is 231042463. The reversal of 231042462 is 264240132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231042463) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 65364 + ... + 68807.

It is an arithmetic number, because the mean of its divisors is an integer number (16905672).

Almost surely, 2231042462 is an apocalyptic number.

231042462 is an abundant number, since it is smaller than the sum of its proper divisors (309939042).

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

231042462 is a wasteful number, since it uses less digits than its factorization.

231042462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134224.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 231042462 is about 15200.0809866264. The cubic root of 231042462 is about 613.6168373365.

Adding to 231042462 its reverse (264240132), we get a palindrome (495282594).

The spelling of 231042462 in words is "two hundred thirty-one million, forty-two thousand, four hundred sixty-two".

Divisors: 1 2 3 6 7 14 21 41 42 82 123 246 287 574 861 1722 134171 268342 402513 805026 939197 1878394 2817591 5501011 5635182 11002022 16503033 33006066 38507077 77014154 115521231 231042462