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248316505 = 5107464143
BaseRepresentation
bin11101100110100…
…00001001011001
3122022020210012121
432303100021121
51002032112010
640350141241
76103440553
oct1663201131
9568223177
10248316505
11118193958
126b1b1821
133c5a3358
1424d9c4d3
1516c003da
hexecd0259

248316505 has 8 divisors (see below), whose sum is σ = 300765312. Its totient is φ = 196796208.

The previous prime is 248316493. The next prime is 248316517. The reversal of 248316505 is 505613842.

It is an interprime number because it is at equal distance from previous prime (248316493) and next prime (248316517).

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 248316505 - 211 = 248314457 is a prime.

It is a super-2 number, since 2×2483165052 = 123322173310830050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 231537 + ... + 232606.

It is an arithmetic number, because the mean of its divisors is an integer number (37595664).

Almost surely, 2248316505 is an apocalyptic number.

It is an amenable number.

248316505 is a deficient number, since it is larger than the sum of its proper divisors (52448807).

248316505 is a wasteful number, since it uses less digits than its factorization.

248316505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464255.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 248316505 is about 15758.0615876446. The cubic root of 248316505 is about 628.5432917723.

The spelling of 248316505 in words is "two hundred forty-eight million, three hundred sixteen thousand, five hundred five".

Divisors: 1 5 107 535 464143 2320715 49663301 248316505