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11904493 = 67177679
BaseRepresentation
bin101101011010…
…010111101101
3211101210220011
4231122113231
511021420433
61103053221
7203120656
oct55322755
924353804
1011904493
1167a1027
123ba1211
13260a6a3
14181c52d
1510a23cd
hexb5a5ed

11904493 has 4 divisors (see below), whose sum is σ = 12082240. Its totient is φ = 11726748.

The previous prime is 11904481. The next prime is 11904509. The reversal of 11904493 is 39440911.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11904493 - 25 = 11904461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11904443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88773 + ... + 88906.

It is an arithmetic number, because the mean of its divisors is an integer number (3020560).

Almost surely, 211904493 is an apocalyptic number.

It is an amenable number.

11904493 is a deficient number, since it is larger than the sum of its proper divisors (177747).

11904493 is an equidigital number, since it uses as much as digits as its factorization.

11904493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177746.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 11904493 is about 3450.2888284896. The cubic root of 11904493 is about 228.3338509706. Note that the first 3 decimals are identical.

The spelling of 11904493 in words is "eleven million, nine hundred four thousand, four hundred ninety-three".

Divisors: 1 67 177679 11904493