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248648 = 2331081
BaseRepresentation
bin111100101101001000
3110122002012
4330231020
530424043
65155052
72053631
oct745510
9418065
10248648
1115a8a4
12bba88
138923a
1466888
154da18
hex3cb48

248648 has 8 divisors (see below), whose sum is σ = 466230. Its totient is φ = 124320.

The previous prime is 248641. The next prime is 248657. The reversal of 248648 is 846842.

248648 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 228484 + 20164 = 478^2 + 142^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 14.

It is a nialpdrome in base 12.

It is a zygodrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (248641) by changing a digit.

248648 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15533 + ... + 15548.

2248648 is an apocalyptic number.

It is an amenable number.

248648 is a deficient number, since it is larger than the sum of its proper divisors (217582).

248648 is a wasteful number, since it uses less digits than its factorization.

248648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31087 (or 31083 counting only the distinct ones).

The product of its digits is 12288, while the sum is 32.

The square root of 248648 is about 498.6461671366. The cubic root of 248648 is about 62.8822862811.

The spelling of 248648 in words is "two hundred forty-eight thousand, six hundred forty-eight".

Divisors: 1 2 4 8 31081 62162 124324 248648