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53286472 = 236660809
BaseRepresentation
bin1100101101000…
…1011001001000
310201021020022001
43023101121020
5102120131342
65142040344
71214633101
oct313213110
9121236261
1053286472
1128095a08
1215a190b4
13b069275
1471113a8
154a288b7
hex32d1648

53286472 has 8 divisors (see below), whose sum is σ = 99912150. Its totient is φ = 26643232.

The previous prime is 53286451. The next prime is 53286473. The reversal of 53286472 is 27468235.

It can be written as a sum of positive squares in only one way, i.e., 43639236 + 9647236 = 6606^2 + 3106^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

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 (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3330397 + ... + 3330412.

Almost surely, 253286472 is an apocalyptic number.

It is an amenable number.

53286472 is a deficient number, since it is larger than the sum of its proper divisors (46625678).

53286472 is a wasteful number, since it uses less digits than its factorization.

53286472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6660815 (or 6660811 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 53286472 is about 7299.7583521648. The cubic root of 53286472 is about 376.3041337400.

The spelling of 53286472 in words is "fifty-three million, two hundred eighty-six thousand, four hundred seventy-two".

Divisors: 1 2 4 8 6660809 13321618 26643236 53286472