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49087 = 191257
BaseRepresentation
bin1011111110111111
32111100001
423332333
53032322
61015131
7263053
oct137677
974301
1049087
1133975
12244a7
131945c
1413c63
15e827
hexbfbf

49087 has 4 divisors (see below), whose sum is σ = 49536. Its totient is φ = 48640.

The previous prime is 49081. The next prime is 49103. The reversal of 49087 is 78094.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 78094 = 239047.

It is a cyclic number.

It is not a de Polignac number, because 49087 - 215 = 16319 is a prime.

It is a Duffinian number.

49087 is an undulating number in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49081) 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, 63 + ... + 319.

It is an arithmetic number, because the mean of its divisors is an integer number (12384).

249087 is an apocalyptic number.

49087 is a deficient number, since it is larger than the sum of its proper divisors (449).

49087 is a wasteful number, since it uses less digits than its factorization.

49087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 49087 is about 221.5558620303. Note that the first 3 decimals coincide. The cubic root of 49087 is about 36.6147014108.

The spelling of 49087 in words is "forty-nine thousand, eighty-seven".

Divisors: 1 191 257 49087