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53288769 = 3233720873
BaseRepresentation
bin1100101101000…
…1111101000001
310201021100110010
43023101331001
5102120220034
65142055133
71214642562
oct313217501
9121240403
1053288769
1128097706
1215a1a4a9
13b06a321
147112169
154a293e9
hex32d1f41

53288769 has 16 divisors (see below), whose sum is σ = 76148352. Its totient is φ = 33061248.

The previous prime is 53288713. The next prime is 53288771. The reversal of 53288769 is 96788235.

53288769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53288769 - 215 = 53256001 is a prime.

It is a super-2 number, since 2×532887692 = 5679385803070722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53288869) 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 15 ways as a sum of consecutive naturals, for example, 7884 + ... + 12989.

It is an arithmetic number, because the mean of its divisors is an integer number (4759272).

Almost surely, 253288769 is an apocalyptic number.

It is an amenable number.

53288769 is a deficient number, since it is larger than the sum of its proper divisors (22859583).

53288769 is a wasteful number, since it uses less digits than its factorization.

53288769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20936.

The product of its digits is 725760, while the sum is 48.

The square root of 53288769 is about 7299.9156844446. The cubic root of 53288769 is about 376.3095407294.

The spelling of 53288769 in words is "fifty-three million, two hundred eighty-eight thousand, seven hundred sixty-nine".

Divisors: 1 3 23 37 69 111 851 2553 20873 62619 480079 772301 1440237 2316903 17762923 53288769