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23431004 = 2247124633
BaseRepresentation
bin101100101100…
…0011101011100
31122002102021222
41121120131130
521444243004
62154112512
7403105652
oct131303534
948072258
1023431004
1112254073
127a1b738
134b14ccc
14317cdd2
1520cc7be
hex165875c

23431004 has 12 divisors (see below), whose sum is σ = 41877024. Its totient is φ = 11466144.

The previous prime is 23430991. The next prime is 23431013. The reversal of 23431004 is 40013432.

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 3 ways as a sum of consecutive naturals, for example, 62129 + ... + 62504.

It is an arithmetic number, because the mean of its divisors is an integer number (3489752).

Almost surely, 223431004 is an apocalyptic number.

It is an amenable number.

23431004 is a deficient number, since it is larger than the sum of its proper divisors (18446020).

23431004 is a wasteful number, since it uses less digits than its factorization.

23431004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124684 (or 124682 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 23431004 is about 4840.5582322703. The cubic root of 23431004 is about 286.1521188576.

Adding to 23431004 its reverse (40013432), we get a palindrome (63444436).

The spelling of 23431004 in words is "twenty-three million, four hundred thirty-one thousand, four".

Divisors: 1 2 4 47 94 188 124633 249266 498532 5857751 11715502 23431004