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52051131 = 3211525769
BaseRepresentation
bin1100011010001…
…1110010111011
310121221110201200
43012203302323
5101311114011
65055345243
71201266366
oct306436273
9117843650
1052051131
1127421870
1215522223
13aa25bb2
146cad0dd
154882856
hex31a3cbb

52051131 has 12 divisors (see below), whose sum is σ = 82020120. Its totient is φ = 31546080.

The previous prime is 52051121. The next prime is 52051133. The reversal of 52051131 is 13115025.

It is a de Polignac number, because none of the positive numbers 2k-52051131 is a prime.

It is a super-2 number, since 2×520511312 = 5418640476758322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52051133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 262786 + ... + 262983.

It is an arithmetic number, because the mean of its divisors is an integer number (6835010).

Almost surely, 252051131 is an apocalyptic number.

52051131 is a deficient number, since it is larger than the sum of its proper divisors (29968989).

52051131 is a wasteful number, since it uses less digits than its factorization.

52051131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525786 (or 525783 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 52051131 is about 7214.6469768104. The cubic root of 52051131 is about 373.3734134443.

Adding to 52051131 its reverse (13115025), we get a palindrome (65166156).

It can be divided in two parts, 5205 and 1131, that added together give a palindrome (6336).

The spelling of 52051131 in words is "fifty-two million, fifty-one thousand, one hundred thirty-one".

Divisors: 1 3 9 11 33 99 525769 1577307 4731921 5783459 17350377 52051131