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248236245 = 345612929
BaseRepresentation
bin11101100101111…
…00100011010101
3122022002201010000
432302330203111
51002022024440
640344321513
76102654555
oct1662744325
9568081100
10248236245
11118139624
126b173299
133c57596a
1424d7b165
1516bd6730
hexecbc8d5

248236245 has 20 divisors (see below), whose sum is σ = 444987180. Its totient is φ = 132392448.

The previous prime is 248236237. The next prime is 248236277. The reversal of 248236245 is 542632842.

248236245 is a `hidden beast` number, since 2 + 4 + 8 + 23 + 624 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 72488196 + 175748049 = 8514^2 + 13257^2 .

It is not a de Polignac number, because 248236245 - 23 = 248236237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 306060 + ... + 306869.

It is an arithmetic number, because the mean of its divisors is an integer number (22249359).

Almost surely, 2248236245 is an apocalyptic number.

It is an amenable number.

248236245 is a deficient number, since it is larger than the sum of its proper divisors (196750935).

248236245 is an equidigital number, since it uses as much as digits as its factorization.

248236245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612946 (or 612937 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 248236245 is about 15755.5147488110. The cubic root of 248236245 is about 628.4755659471.

The spelling of 248236245 in words is "two hundred forty-eight million, two hundred thirty-six thousand, two hundred forty-five".

Divisors: 1 3 5 9 15 27 45 81 135 405 612929 1838787 3064645 5516361 9193935 16549083 27581805 49647249 82745415 248236245