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53782885 = 513827429
BaseRepresentation
bin1100110100101…
…0100101100101
310202012110020201
43031022211211
5102232023020
65200430501
71222101262
oct315124545
9122173221
1053782885
11283a4972
1216018431
13b1b11c0
147200269
154ac5a0a
hex334a965

53782885 has 8 divisors (see below), whose sum is σ = 69504120. Its totient is φ = 39716544.

The previous prime is 53782847. The next prime is 53782903. The reversal of 53782885 is 58828735.

53782885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6640929 + 47141956 = 2577^2 + 6866^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53782885 - 215 = 53750117 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 413650 + ... + 413779.

It is an arithmetic number, because the mean of its divisors is an integer number (8688015).

Almost surely, 253782885 is an apocalyptic number.

It is an amenable number.

53782885 is a deficient number, since it is larger than the sum of its proper divisors (15721235).

53782885 is a wasteful number, since it uses less digits than its factorization.

53782885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827447.

The product of its digits is 537600, while the sum is 46.

The square root of 53782885 is about 7333.6815447632. The cubic root of 53782885 is about 377.4690646112.

The spelling of 53782885 in words is "fifty-three million, seven hundred eighty-two thousand, eight hundred eighty-five".

Divisors: 1 5 13 65 827429 4137145 10756577 53782885