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248239585 = 5114513447
BaseRepresentation
bin11101100101111…
…01010111100001
3122022002212200201
432302331113201
51002022131320
640344345201
76103000366
oct1662752741
9568085621
10248239585
11118141090
126b175201
133c577339
1424d7c46d
1516bd770a
hexecbd5e1

248239585 has 8 divisors (see below), whose sum is σ = 324968256. Its totient is φ = 180537840.

The previous prime is 248239577. The next prime is 248239597. The reversal of 248239585 is 585932842.

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

It is not a de Polignac number, because 248239585 - 23 = 248239577 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2256669 + ... + 2256778.

It is an arithmetic number, because the mean of its divisors is an integer number (40621032).

Almost surely, 2248239585 is an apocalyptic number.

It is an amenable number.

248239585 is a deficient number, since it is larger than the sum of its proper divisors (76728671).

248239585 is a wasteful number, since it uses less digits than its factorization.

248239585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4513463.

The product of its digits is 691200, while the sum is 46.

The square root of 248239585 is about 15755.6207430872. The cubic root of 248239585 is about 628.4783846316.

The spelling of 248239585 in words is "two hundred forty-eight million, two hundred thirty-nine thousand, five hundred eighty-five".

Divisors: 1 5 11 55 4513447 22567235 49647917 248239585