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53011013 = 1161199397
BaseRepresentation
bin1100101000111…
…0001001000101
310200202020102212
43022032021011
5102032323023
65132113205
71212405026
oct312161105
9120666385
1053011013
1127a17a60
1215905805
13aca0a83
14707cc4d
1549c1e78
hex328e245

53011013 has 16 divisors (see below), whose sum is σ = 59222400. Its totient is φ = 47044800.

The previous prime is 53011001. The next prime is 53011031. The reversal of 53011013 is 31011035.

It is not a de Polignac number, because 53011013 - 218 = 52748869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53011513) 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 15 ways as a sum of consecutive naturals, for example, 133331 + ... + 133727.

It is an arithmetic number, because the mean of its divisors is an integer number (3701400).

Almost surely, 253011013 is an apocalyptic number.

It is an amenable number.

53011013 is a deficient number, since it is larger than the sum of its proper divisors (6211387).

53011013 is a wasteful number, since it uses less digits than its factorization.

53011013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668.

The product of its (nonzero) digits is 45, while the sum is 14.

The square root of 53011013 is about 7280.8662259377. The cubic root of 53011013 is about 375.6545912146.

Adding to 53011013 its reverse (31011035), we get a palindrome (84022048).

The spelling of 53011013 in words is "fifty-three million, eleven thousand, thirteen".

Divisors: 1 11 61 199 397 671 2189 4367 12139 24217 79003 133529 266387 869033 4819183 53011013