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52305631 = 760112433
BaseRepresentation
bin1100011110000…
…1111011011111
310122102101211121
43013201323133
5101342240011
65105031411
71203406360
oct307417337
9118371747
1052305631
1127585aa4
1215625567
13aab49a1
146d37b67
1548d2e71
hex31e1edf

52305631 has 8 divisors (see below), whose sum is σ = 59882144. Its totient is φ = 44755200.

The previous prime is 52305619. The next prime is 52305637. The reversal of 52305631 is 13650325.

It is a happy number.

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

It is not a de Polignac number, because 52305631 - 25 = 52305599 is a prime.

It is a super-2 number, since 2×523056312 = 5471758068616322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52305596 and 52305605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52305637) 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, 2010 + ... + 10423.

It is an arithmetic number, because the mean of its divisors is an integer number (7485268).

Almost surely, 252305631 is an apocalyptic number.

52305631 is a deficient number, since it is larger than the sum of its proper divisors (7576513).

52305631 is a wasteful number, since it uses less digits than its factorization.

52305631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13041.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 52305631 is about 7232.2632004097. The cubic root of 52305631 is about 373.9809512065.

Adding to 52305631 its reverse (13650325), we get a palindrome (65955956).

The spelling of 52305631 in words is "fifty-two million, three hundred five thousand, six hundred thirty-one".

Divisors: 1 7 601 4207 12433 87031 7472233 52305631