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53573013 = 3213457889
BaseRepresentation
bin1100110001011…
…1010110010101
310201210210100200
43030113112111
5102203314023
65152131113
71220235354
oct314272625
9121723320
1053573013
112827121a
1215b36a99
13b139810
14718799b
154a83743
hex3317595

53573013 has 12 divisors (see below), whose sum is σ = 83335980. Its totient is φ = 32967936.

The previous prime is 53573011. The next prime is 53573029. The reversal of 53573013 is 31037535.

53573013 is a `hidden beast` number, since 5 + 357 + 301 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4334724 + 49238289 = 2082^2 + 7017^2 .

It is not a de Polignac number, because 53573013 - 21 = 53573011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53573011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228828 + ... + 229061.

It is an arithmetic number, because the mean of its divisors is an integer number (6944665).

Almost surely, 253573013 is an apocalyptic number.

It is an amenable number.

53573013 is a deficient number, since it is larger than the sum of its proper divisors (29762967).

53573013 is a wasteful number, since it uses less digits than its factorization.

53573013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457908 (or 457905 counting only the distinct ones).

The product of its (nonzero) digits is 4725, while the sum is 27.

The square root of 53573013 is about 7319.3587833908. The cubic root of 53573013 is about 376.9774369862.

The spelling of 53573013 in words is "fifty-three million, five hundred seventy-three thousand, thirteen".

Divisors: 1 3 9 13 39 117 457889 1373667 4121001 5952557 17857671 53573013