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248226569 = 1181321013
BaseRepresentation
bin11101100101110…
…10001100001001
3122022002012211122
432302322030021
51002021222234
640344205025
76102614423
oct1662721411
9568065748
10248226569
11118132328
126b169775
133c571436
1424d77813
1516bd392e
hexecba309

248226569 has 4 divisors (see below), whose sum is σ = 248259396. Its totient is φ = 248193744.

The previous prime is 248226551. The next prime is 248226581. The reversal of 248226569 is 965622842.

248226569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 28090000 + 220136569 = 5300^2 + 14837^2 .

It is a cyclic number.

It is not a de Polignac number, because 248226569 - 28 = 248226313 is a prime.

It is a super-2 number, since 2×2482265692 = 123232859115023522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248226169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1307 + ... + 22319.

It is an arithmetic number, because the mean of its divisors is an integer number (62064849).

Almost surely, 2248226569 is an apocalyptic number.

It is an amenable number.

248226569 is a deficient number, since it is larger than the sum of its proper divisors (32827).

248226569 is a wasteful number, since it uses less digits than its factorization.

248226569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32826.

The product of its digits is 414720, while the sum is 44.

The square root of 248226569 is about 15755.2076787328. The cubic root of 248226569 is about 628.4674000584.

The spelling of 248226569 in words is "two hundred forty-eight million, two hundred twenty-six thousand, five hundred sixty-nine".

Divisors: 1 11813 21013 248226569