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248379856 = 2419817039
BaseRepresentation
bin11101100110111…
…11100111010000
3122022101000002221
432303133213100
51002041123411
640351350424
76104123344
oct1663374720
9568330087
10248379856
1111822750a
126b222414
133c5c613a
1424db7624
1516c14071
hexecdf9d0

248379856 has 20 divisors (see below), whose sum is σ = 506564800. Its totient is φ = 117653472.

The previous prime is 248379847. The next prime is 248379881. The reversal of 248379856 is 658973842.

It is a congruent number.

It is an unprimeable number.

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, 408216 + ... + 408823.

It is an arithmetic number, because the mean of its divisors is an integer number (25328240).

Almost surely, 2248379856 is an apocalyptic number.

It is an amenable number.

248379856 is an abundant number, since it is smaller than the sum of its proper divisors (258184944).

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

248379856 is a wasteful number, since it uses less digits than its factorization.

248379856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817066 (or 817060 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 52.

The square root of 248379856 is about 15760.0715734415. The cubic root of 248379856 is about 628.5967389651.

The spelling of 248379856 in words is "two hundred forty-eight million, three hundred seventy-nine thousand, eight hundred fifty-six".

Divisors: 1 2 4 8 16 19 38 76 152 304 817039 1634078 3268156 6536312 13072624 15523741 31047482 62094964 124189928 248379856