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53012648 = 2313509737
BaseRepresentation
bin1100101000111…
…0100010101000
310200202022200102
43022032202220
5102032401043
65132124532
71212412553
oct312164250
9120668612
1053012648
1127a19207
1215906748
13aca1740
14707d69a
1549c26b8
hex328e8a8

53012648 has 16 divisors (see below), whose sum is σ = 107044980. Its totient is φ = 24467328.

The previous prime is 53012633. The next prime is 53012651. The reversal of 53012648 is 84621035.

It can be written as a sum of positive squares in 2 ways, for example, as 52678564 + 334084 = 7258^2 + 578^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 53012648.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254765 + ... + 254972.

Almost surely, 253012648 is an apocalyptic number.

It is an amenable number.

53012648 is an abundant number, since it is smaller than the sum of its proper divisors (54032332).

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

53012648 is a wasteful number, since it uses less digits than its factorization.

53012648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509756 (or 509752 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 53012648 is about 7280.9785056680. The cubic root of 53012648 is about 375.6584532356.

The spelling of 53012648 in words is "fifty-three million, twelve thousand, six hundred forty-eight".

Divisors: 1 2 4 8 13 26 52 104 509737 1019474 2038948 4077896 6626581 13253162 26506324 53012648