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52353531 = 32192111451
BaseRepresentation
bin1100011110110…
…1100111111011
310122111211112200
43013231213323
5101400303111
65110041243
71203666126
oct307554773
9118454480
1052353531
1127608a8a
1215649223
13ab00729
146d4b3bd
1548e2256
hex31ed9fb

52353531 has 24 divisors (see below), whose sum is σ = 80034240. Its totient is φ = 32886000.

The previous prime is 52353529. The next prime is 52353577. The reversal of 52353531 is 13535325.

It is not a de Polignac number, because 52353531 - 21 = 52353529 is a prime.

It is a super-2 number, since 2×523535312 = 5481784416335922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52353495 and 52353504.

It is not an unprimeable number, because it can be changed into a prime (52353031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35356 + ... + 36806.

It is an arithmetic number, because the mean of its divisors is an integer number (3334760).

Almost surely, 252353531 is an apocalyptic number.

52353531 is a deficient number, since it is larger than the sum of its proper divisors (27680709).

52353531 is a wasteful number, since it uses less digits than its factorization.

52353531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1687 (or 1684 counting only the distinct ones).

The product of its digits is 6750, while the sum is 27.

The square root of 52353531 is about 7235.5739924349. The cubic root of 52353531 is about 374.0950767268.

Adding to 52353531 its reverse (13535325), we get a palindrome (65888856).

The spelling of 52353531 in words is "fifty-two million, three hundred fifty-three thousand, five hundred thirty-one".

Divisors: 1 3 9 19 57 171 211 633 1451 1899 4009 4353 12027 13059 27569 36081 82707 248121 306161 918483 2755449 5817059 17451177 52353531