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53360657 = 721088993
BaseRepresentation
bin1100101110001…
…1100000010001
310201102000001122
43023203200101
5102130020112
65143412025
71215362300
oct313434021
9121360048
1053360657
1128136719
1215a54015
13b093c6c
147130437
154a40872
hex32e3811

53360657 has 6 divisors (see below), whose sum is σ = 62072658. Its totient is φ = 45737664.

The previous prime is 53360633. The next prime is 53360677. The reversal of 53360657 is 75606335.

It can be written as a sum of positive squares in only one way, i.e., 52287361 + 1073296 = 7231^2 + 1036^2 .

It is not a de Polignac number, because 53360657 - 210 = 53359633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53360627) 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 in 5 ways as a sum of consecutive naturals, for example, 544448 + ... + 544545.

It is an arithmetic number, because the mean of its divisors is an integer number (10345443).

Almost surely, 253360657 is an apocalyptic number.

It is an amenable number.

53360657 is a deficient number, since it is larger than the sum of its proper divisors (8712001).

53360657 is a wasteful number, since it uses less digits than its factorization.

53360657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089007 (or 1089000 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 35.

The square root of 53360657 is about 7304.8379174353. The cubic root of 53360657 is about 376.4786819650.

The spelling of 53360657 in words is "fifty-three million, three hundred sixty thousand, six hundred fifty-seven".

Divisors: 1 7 49 1088993 7622951 53360657