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52031263 = 62478329
BaseRepresentation
bin1100011001111…
…0111100011111
310121220110110211
43012132330133
5101310000023
65055113251
71201154434
oct306367437
9117813424
1052031263
1127408949
1215512827
13aa19b3b
146ca5b8b
15487ba0d
hex319ef1f

52031263 has 4 divisors (see below), whose sum is σ = 52045840. Its totient is φ = 52016688.

The previous prime is 52031227. The next prime is 52031279. The reversal of 52031263 is 36213025.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a 4-Lehmer number, since φ(52031263) divides (52031263-1)4.

It is a cyclic number.

It is not a de Polignac number, because 52031263 - 225 = 18476831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52031293) 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 3 ways as a sum of consecutive naturals, for example, 2083 + ... + 10411.

It is an arithmetic number, because the mean of its divisors is an integer number (13011460).

Almost surely, 252031263 is an apocalyptic number.

52031263 is a deficient number, since it is larger than the sum of its proper divisors (14577).

52031263 is an equidigital number, since it uses as much as digits as its factorization.

52031263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14576.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 52031263 is about 7213.2699242438. The cubic root of 52031263 is about 373.3259016555.

Adding to 52031263 its reverse (36213025), we get a palindrome (88244288).

The spelling of 52031263 in words is "fifty-two million, thirty-one thousand, two hundred sixty-three".

Divisors: 1 6247 8329 52031263