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53286478 = 273806177
BaseRepresentation
bin1100101101000…
…1011001001110
310201021020022021
43023101121032
5102120131403
65142040354
71214633110
oct313213116
9121236267
1053286478
1128095a13
1215a190ba
13b06927b
1471113b0
154a288bd
hex32d164e

53286478 has 8 divisors (see below), whose sum is σ = 91348272. Its totient is φ = 22837056.

The previous prime is 53286473. The next prime is 53286481. The reversal of 53286478 is 87468235.

53286478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53286473) 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 in 3 ways as a sum of consecutive naturals, for example, 1903075 + ... + 1903102.

It is an arithmetic number, because the mean of its divisors is an integer number (11418534).

Almost surely, 253286478 is an apocalyptic number.

53286478 is a deficient number, since it is larger than the sum of its proper divisors (38061794).

53286478 is a wasteful number, since it uses less digits than its factorization.

53286478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3806186.

The product of its digits is 322560, while the sum is 43.

The square root of 53286478 is about 7299.7587631373. The cubic root of 53286478 is about 376.3041478638.

The spelling of 53286478 in words is "fifty-three million, two hundred eighty-six thousand, four hundred seventy-eight".

Divisors: 1 2 7 14 3806177 7612354 26643239 53286478