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248874940 = 22512443747
BaseRepresentation
bin11101101010110…
…00011110111100
3122100022011020101
432311120132330
51002202444230
640410130444
76111254626
oct1665303674
9570264211
10248874940
11118535476
126b420a24
133c73a5a2
14250a5c16
1516cb0aca
hexed587bc

248874940 has 12 divisors (see below), whose sum is σ = 522637416. Its totient is φ = 99549968.

The previous prime is 248874931. The next prime is 248874947. The reversal of 248874940 is 49478842.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248874947) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6221854 + ... + 6221893.

It is an arithmetic number, because the mean of its divisors is an integer number (43553118).

Almost surely, 2248874940 is an apocalyptic number.

248874940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

248874940 is an abundant number, since it is smaller than the sum of its proper divisors (273762476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

248874940 is a wasteful number, since it uses less digits than its factorization.

248874940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12443756 (or 12443754 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 46.

The square root of 248874940 is about 15775.7706626333. The cubic root of 248874940 is about 629.0141126460.

The spelling of 248874940 in words is "two hundred forty-eight million, eight hundred seventy-four thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 12443747 24887494 49774988 62218735 124437470 248874940