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49285 = 59857
BaseRepresentation
bin1100000010000101
32111121101
430002011
53034120
61020101
7263455
oct140205
974541
1049285
1134035
1224631
1319582
1413d65
15e90a
hexc085

49285 has 4 divisors (see below), whose sum is σ = 59148. Its totient is φ = 39424.

The previous prime is 49279. The next prime is 49297. The reversal of 49285 is 58294.

It is a happy number.

It is a Cunningham number, because it is equal to 2222+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58294 = 229147.

It can be written as a sum of positive squares in 2 ways, for example, as 17956 + 31329 = 134^2 + 177^2 .

It is a cyclic number.

It is not a de Polignac number, because 49285 - 23 = 49277 is a prime.

It is a super-2 number, since 2×492852 = 4858022450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4924 + ... + 4933.

It is an arithmetic number, because the mean of its divisors is an integer number (14787).

249285 is an apocalyptic number.

It is an amenable number.

49285 is a deficient number, since it is larger than the sum of its proper divisors (9863).

49285 is an equidigital number, since it uses as much as digits as its factorization.

49285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9862.

The product of its digits is 2880, while the sum is 28.

The square root of 49285 is about 222.0022522408. The cubic root of 49285 is about 36.6638657181.

Subtracting 49285 from its reverse (58294), we obtain a palindrome (9009).

The spelling of 49285 in words is "forty-nine thousand, two hundred eighty-five".

Divisors: 1 5 9857 49285