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48511 = 139349
BaseRepresentation
bin1011110101111111
32110112201
423311333
53023021
61012331
7261301
oct136577
973481
1048511
11334a1
12240a7
1319108
1413971
15e591
hexbd7f

48511 has 4 divisors (see below), whose sum is σ = 49000. Its totient is φ = 48024.

The previous prime is 48497. The next prime is 48523. The reversal of 48511 is 11584.

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.

It is a cyclic number.

It is not a de Polignac number, because 48511 - 25 = 48479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48541) 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 3 ways as a sum of consecutive naturals, for example, 36 + ... + 313.

It is an arithmetic number, because the mean of its divisors is an integer number (12250).

248511 is an apocalyptic number.

48511 is the 99-th centered decagonal number.

48511 is a deficient number, since it is larger than the sum of its proper divisors (489).

48511 is a wasteful number, since it uses less digits than its factorization.

48511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488.

The product of its digits is 160, while the sum is 19.

The square root of 48511 is about 220.2521282531. The cubic root of 48511 is about 36.4709219838.

It can be divided in two parts, 485 and 11, that multiplied together give a palindrome (5335).

The spelling of 48511 in words is "forty-eight thousand, five hundred eleven".

Divisors: 1 139 349 48511