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23431324 = 227836833
BaseRepresentation
bin101100101100…
…0100010011100
31122002102201211
41121120202130
521444300244
62154114204
7403106620
oct131304234
948072654
1023431324
1112254334
127a1b964
134b151b7
14317d180
1520cc934
hex165889c

23431324 has 12 divisors (see below), whose sum is σ = 46862704. Its totient is φ = 10041984.

The previous prime is 23431301. The next prime is 23431327. The reversal of 23431324 is 42313432.

It is a happy number.

23431324 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 23431295 and 23431304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23431327) 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, 418389 + ... + 418444.

Almost surely, 223431324 is an apocalyptic number.

It is an amenable number.

23431324 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

23431324 is a wasteful number, since it uses less digits than its factorization.

23431324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836844 (or 836842 counting only the distinct ones).

The product of its digits is 1728, while the sum is 22.

The square root of 23431324 is about 4840.5912861963. The cubic root of 23431324 is about 286.1534215228.

Adding to 23431324 its reverse (42313432), we get a palindrome (65744756).

The spelling of 23431324 in words is "twenty-three million, four hundred thirty-one thousand, three hundred twenty-four".

Divisors: 1 2 4 7 14 28 836833 1673666 3347332 5857831 11715662 23431324