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248648404 = 2262162101
BaseRepresentation
bin11101101001000…
…01001011010100
3122022212122111011
432310201023110
51002123222104
640401222004
76106322314
oct1664411324
9568778434
10248648404
111183a0254
126b331904
133c68b444
1425047444
1516c68904
hexed212d4

248648404 has 6 divisors (see below), whose sum is σ = 435134714. Its totient is φ = 124324200.

The previous prime is 248648401. The next prime is 248648417. The reversal of 248648404 is 404846842.

It can be written as a sum of positive squares in only one way, i.e., 240250000 + 8398404 = 15500^2 + 2898^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248648401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31081047 + ... + 31081054.

Almost surely, 2248648404 is an apocalyptic number.

It is an amenable number.

248648404 is a deficient number, since it is larger than the sum of its proper divisors (186486310).

248648404 is a wasteful number, since it uses less digits than its factorization.

248648404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62162105 (or 62162103 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 40.

The square root of 248648404 is about 15768.5891569284. The cubic root of 248648404 is about 628.8232033784.

The spelling of 248648404 in words is "two hundred forty-eight million, six hundred forty-eight thousand, four hundred four".

Divisors: 1 2 4 62162101 124324202 248648404