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53111135 = 5711212541
BaseRepresentation
bin1100101010011…
…0100101011111
310200221022210002
43022212211133
5102044024020
65134204515
71213302650
oct312464537
9120838702
1053111135
1127a86200
121595373b
13b00750c
1470a7527
1549e1975
hex32a695f

53111135 has 24 divisors (see below), whose sum is σ = 80068128. Its totient is φ = 33105600.

The previous prime is 53111027. The next prime is 53111143.

53111135 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 53111135 - 28 = 53110879 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2036 + ... + 10505.

It is an arithmetic number, because the mean of its divisors is an integer number (3336172).

Almost surely, 253111135 is an apocalyptic number.

53111135 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

53111135 is a deficient number, since it is larger than the sum of its proper divisors (26956993).

53111135 is a wasteful number, since it uses less digits than its factorization.

53111135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12575 (or 12564 counting only the distinct ones).

The product of its digits is 225, while the sum is 20.

The square root of 53111135 is about 7287.7386753368. The cubic root of 53111135 is about 375.8909423225.

It can be divided in two parts, 5311 and 1135, that added together give a palindrome (6446).

The spelling of 53111135 in words is "fifty-three million, one hundred eleven thousand, one hundred thirty-five".

Divisors: 1 5 7 11 35 55 77 121 385 605 847 4235 12541 62705 87787 137951 438935 689755 965657 1517461 4828285 7587305 10622227 53111135