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28461353 = 33718443
BaseRepresentation
bin110110010010…
…0100100101001
31222112222122012
41230210210221
524241230403
62454005305
7463626464
oct154444451
958488565
1028461353
111507a488
129646835
135b8684b
143acc2db
152772ed8
hex1b24929

28461353 has 4 divisors (see below), whose sum is σ = 28473168. Its totient is φ = 28449540.

The previous prime is 28461347. The next prime is 28461361. The reversal of 28461353 is 35316482.

28461353 is nontrivially palindromic in base 8.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 35316482 = 217658241.

It is a cyclic number.

It is not a de Polignac number, because 28461353 - 24 = 28461337 is a prime.

It is a super-2 number, since 2×284613532 = 1620097229181218, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28461343) 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, 851 + ... + 7592.

It is an arithmetic number, because the mean of its divisors is an integer number (7118292).

Almost surely, 228461353 is an apocalyptic number.

It is an amenable number.

28461353 is a deficient number, since it is larger than the sum of its proper divisors (11815).

28461353 is an equidigital number, since it uses as much as digits as its factorization.

28461353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11814.

The product of its digits is 17280, while the sum is 32.

The square root of 28461353 is about 5334.9182749129. The cubic root of 28461353 is about 305.3176051926.

The spelling of 28461353 in words is "twenty-eight million, four hundred sixty-one thousand, three hundred fifty-three".

Divisors: 1 3371 8443 28461353