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53328871 = 792772437
BaseRepresentation
bin1100101101101…
…1101111100111
310201100101110101
43023123233213
5102123010441
65143004531
71215200521
oct313335747
9121311411
1053328871
1128114852
1215a39747
13b08265b
147122a11
154a36231
hex32dbbe7

53328871 has 8 divisors (see below), whose sum is σ = 54221120. Its totient is φ = 52442208.

The previous prime is 53328857. The next prime is 53328887. The reversal of 53328871 is 17882335.

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 53328871 - 213 = 53320679 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53328871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53328811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20665 + ... + 23101.

It is an arithmetic number, because the mean of its divisors is an integer number (6777640).

Almost surely, 253328871 is an apocalyptic number.

53328871 is a deficient number, since it is larger than the sum of its proper divisors (892249).

53328871 is a wasteful number, since it uses less digits than its factorization.

53328871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2793.

The product of its digits is 40320, while the sum is 37.

The square root of 53328871 is about 7302.6619119332. The cubic root of 53328871 is about 376.4039132185.

The spelling of 53328871 in words is "fifty-three million, three hundred twenty-eight thousand, eight hundred seventy-one".

Divisors: 1 79 277 2437 21883 192523 675049 53328871