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13774285 = 57393551
BaseRepresentation
bin110100100010…
…110111001101
3221220210202201
4310202313031
512011234120
61211121501
7225036160
oct64426715
927823681
1013774285
117858908
124743291
132b13785
141b87ad7
15132140a
hexd22dcd

13774285 has 8 divisors (see below), whose sum is σ = 18890496. Its totient is φ = 9445200.

The previous prime is 13774273. The next prime is 13774289. The reversal of 13774285 is 58247731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13774285 - 25 = 13774253 is a prime.

It is a super-2 number, since 2×137742852 = 379461854522450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13774289) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 196741 + ... + 196810.

It is an arithmetic number, because the mean of its divisors is an integer number (2361312).

Almost surely, 213774285 is an apocalyptic number.

It is an amenable number.

13774285 is a deficient number, since it is larger than the sum of its proper divisors (5116211).

13774285 is an equidigital number, since it uses as much as digits as its factorization.

13774285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393563.

The product of its digits is 47040, while the sum is 37.

The square root of 13774285 is about 3711.3723876755. The cubic root of 13774285 is about 239.7119518765.

The spelling of 13774285 in words is "thirteen million, seven hundred seventy-four thousand, two hundred eighty-five".

Divisors: 1 5 7 35 393551 1967755 2754857 13774285