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248116505 = 5713241947
BaseRepresentation
bin11101100100111…
…11010100011001
3122021212121212012
432302133110121
51002004212010
640341555305
76101645510
oct1662372431
9567777765
10248116505
1111806766a
126b115b35
133c533300
1424d49677
1516bb1005
hexec9f519

248116505 has 24 divisors (see below), whose sum is σ = 368471232. Its totient is φ = 157045824.

The previous prime is 248116501. The next prime is 248116511. The reversal of 248116505 is 505611842.

248116505 is nontrivially palindromic in base 9.

It is not a de Polignac number, because 248116505 - 22 = 248116501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248116501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15059 + ... + 26888.

It is an arithmetic number, because the mean of its divisors is an integer number (15352968).

Almost surely, 2248116505 is an apocalyptic number.

It is an amenable number.

248116505 is a deficient number, since it is larger than the sum of its proper divisors (120354727).

248116505 is a wasteful number, since it uses less digits than its factorization.

248116505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41985 (or 41972 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 248116505 is about 15751.7143511429. The cubic root of 248116505 is about 628.3744985581.

The spelling of 248116505 in words is "two hundred forty-eight million, one hundred sixteen thousand, five hundred five".

Divisors: 1 5 7 13 35 65 91 169 455 845 1183 5915 41947 209735 293629 545311 1468145 2726555 3817177 7089043 19085885 35445215 49623301 248116505