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23105404 = 227825193
BaseRepresentation
bin101100000100…
…0111101111100
31121110212122201
41120020331330
521403333104
62143121244
7400251460
oct130107574
947425581
1023105404
1112051483
1278a3224
134a2ca4a
1430d64a0
1520660a4
hex1608f7c

23105404 has 12 divisors (see below), whose sum is σ = 46210864. Its totient is φ = 9902304.

The previous prime is 23105399. The next prime is 23105417. The reversal of 23105404 is 40450132.

23105404 is an admirable number.

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, 412569 + ... + 412624.

Almost surely, 223105404 is an apocalyptic number.

It is an amenable number.

23105404 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.

23105404 is a wasteful number, since it uses less digits than its factorization.

23105404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825204 (or 825202 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 23105404 is about 4806.8080885344. The cubic root of 23105404 is about 284.8204635119.

Adding to 23105404 its reverse (40450132), we get a palindrome (63555536).

The spelling of 23105404 in words is "twenty-three million, one hundred five thousand, four hundred four".

Divisors: 1 2 4 7 14 28 825193 1650386 3300772 5776351 11552702 23105404