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248234013 = 3227581557
BaseRepresentation
bin11101100101111…
…00000000011101
3122022002121001100
432302330000131
51002021442023
640344303313
76102645216
oct1662740035
9568077040
10248234013
11118137985
126b171b39
133c574941
1424d7a40d
1516bd5c43
hexecbc01d

248234013 has 6 divisors (see below), whose sum is σ = 358560254. Its totient is φ = 165489336.

The previous prime is 248234003. The next prime is 248234023. The reversal of 248234013 is 310432842.

248234013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (248234003) and next prime (248234023).

It can be written as a sum of positive squares in only one way, i.e., 158306724 + 89927289 = 12582^2 + 9483^2 .

It is not a de Polignac number, because 248234013 - 220 = 247185437 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 (248234003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13790770 + ... + 13790787.

Almost surely, 2248234013 is an apocalyptic number.

It is an amenable number.

248234013 is a deficient number, since it is larger than the sum of its proper divisors (110326241).

248234013 is a wasteful number, since it uses less digits than its factorization.

248234013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27581563 (or 27581560 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 248234013 is about 15755.4439163103. The cubic root of 248234013 is about 628.4736823091.

Adding to 248234013 its reverse (310432842), we get a palindrome (558666855).

The spelling of 248234013 in words is "two hundred forty-eight million, two hundred thirty-four thousand, thirteen".

Divisors: 1 3 9 27581557 82744671 248234013