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52486539 = 3713917981
BaseRepresentation
bin1100100000111…
…0000110001011
310122202120222220
43020032012023
5101414032124
65112545123
71205061660
oct310160613
9118676886
1052486539
1127699a06
12156b21a3
13ab49131
146d83a67
15491b879
hex320e18b

52486539 has 16 divisors (see below), whose sum is σ = 80559360. Its totient is φ = 29774880.

The previous prime is 52486523. The next prime is 52486583. The reversal of 52486539 is 93568425.

It is not a de Polignac number, because 52486539 - 24 = 52486523 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52486539.

It is not an unprimeable number, because it can be changed into a prime (52486139) 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, 6072 + ... + 11909.

It is an arithmetic number, because the mean of its divisors is an integer number (5034960).

Almost surely, 252486539 is an apocalyptic number.

52486539 is a deficient number, since it is larger than the sum of its proper divisors (28072821).

52486539 is a wasteful number, since it uses less digits than its factorization.

52486539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18130.

The product of its digits is 259200, while the sum is 42.

The square root of 52486539 is about 7244.7594162953. The cubic root of 52486539 is about 374.4116141774.

It can be divided in two parts, 52 and 486539, that added together give a triangular number (486591 = T986).

The spelling of 52486539 in words is "fifty-two million, four hundred eighty-six thousand, five hundred thirty-nine".

Divisors: 1 3 7 21 139 417 973 2919 17981 53943 125867 377601 2499359 7498077 17495513 52486539