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52393531 = 416719073
BaseRepresentation
bin1100011111011…
…1011000111011
310122120212102011
43013313120323
5101403043111
65110550351
71204223551
oct307673073
9118525364
1052393531
1127636043
12156683b7
13ab159b8
146d5bbd1
1548ee021
hex31f763b

52393531 has 8 divisors (see below), whose sum is σ = 54475344. Its totient is φ = 50350080.

The previous prime is 52393477. The next prime is 52393547. The reversal of 52393531 is 13539325.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52393531 - 27 = 52393403 is a prime.

It is a super-2 number, since 2×523935312 = 5490164181295922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52393493 and 52393502.

It is not an unprimeable number, because it can be changed into a prime (52393631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6790 + ... + 12283.

It is an arithmetic number, because the mean of its divisors is an integer number (6809418).

Almost surely, 252393531 is an apocalyptic number.

52393531 is a deficient number, since it is larger than the sum of its proper divisors (2081813).

52393531 is a wasteful number, since it uses less digits than its factorization.

52393531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19181.

The product of its digits is 12150, while the sum is 31.

The square root of 52393531 is about 7238.3375853852. The cubic root of 52393531 is about 374.1903265501.

The spelling of 52393531 in words is "fifty-two million, three hundred ninety-three thousand, five hundred thirty-one".

Divisors: 1 41 67 2747 19073 781993 1277891 52393531