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49249 = 172897
BaseRepresentation
bin1100000001100001
32111120001
430001201
53033444
61020001
7263404
oct140141
974501
1049249
1134002
1224601
1319555
1413d3b
15e8d4
hexc061

49249 has 4 divisors (see below), whose sum is σ = 52164. Its totient is φ = 46336.

The previous prime is 49223. The next prime is 49253. The reversal of 49249 is 94294.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94294 = 247147.

It can be written as a sum of positive squares in 2 ways, for example, as 21025 + 28224 = 145^2 + 168^2 .

It is a cyclic number.

It is not a de Polignac number, because 49249 - 27 = 49121 is a prime.

It is a Duffinian number.

49249 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49279) by changing a digit.

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, 1432 + ... + 1465.

It is an arithmetic number, because the mean of its divisors is an integer number (13041).

249249 is an apocalyptic number.

It is an amenable number.

49249 is a deficient number, since it is larger than the sum of its proper divisors (2915).

49249 is a wasteful number, since it uses less digits than its factorization.

49249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2914.

The product of its digits is 2592, while the sum is 28.

The square root of 49249 is about 221.9211571707. The cubic root of 49249 is about 36.6549365600.

The spelling of 49249 in words is "forty-nine thousand, two hundred forty-nine".

Divisors: 1 17 2897 49249