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248630393 = 1145749459
BaseRepresentation
bin11101101000111…
…00110001111001
3122022211201210002
432310130301321
51002122133033
640401002345
76106215644
oct1664346171
9568751702
10248630393
11118388770
126b3233b5
133c68319b
1425040a5b
1516c633e8
hexed1cc79

248630393 has 8 divisors (see below), whose sum is σ = 271832160. Its totient is φ = 225528480.

The previous prime is 248630383. The next prime is 248630399. The reversal of 248630393 is 393036842.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 248630393 - 224 = 231853177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248630399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19703 + ... + 29756.

It is an arithmetic number, because the mean of its divisors is an integer number (33979020).

Almost surely, 2248630393 is an apocalyptic number.

It is an amenable number.

248630393 is a deficient number, since it is larger than the sum of its proper divisors (23201767).

248630393 is a wasteful number, since it uses less digits than its factorization.

248630393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49927.

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 248630393 is about 15768.0180428613. The cubic root of 248630393 is about 628.8080199467.

The spelling of 248630393 in words is "two hundred forty-eight million, six hundred thirty thousand, three hundred ninety-three".

Divisors: 1 11 457 5027 49459 544049 22602763 248630393