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52669 = 311699
BaseRepresentation
bin1100110110111101
32200020201
430312331
53141134
61043501
7306361
oct146675
980221
1052669
1136631
1226591
131ac86
14152a1
1510914
hexcdbd

52669 has 4 divisors (see below), whose sum is σ = 54400. Its totient is φ = 50940.

The previous prime is 52667. The next prime is 52673. The reversal of 52669 is 96625.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52669 - 21 = 52667 is a prime.

It is a super-2 number, since 2×526692 = 5548047122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 819 + ... + 880.

It is an arithmetic number, because the mean of its divisors is an integer number (13600).

252669 is an apocalyptic number.

52669 is the 133-rd hex number.

It is an amenable number.

52669 is a deficient number, since it is larger than the sum of its proper divisors (1731).

52669 is a wasteful number, since it uses less digits than its factorization.

52669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730.

The product of its digits is 3240, while the sum is 28.

The square root of 52669 is about 229.4972766723. The cubic root of 52669 is about 37.4844972957.

Subtracting 52669 from its reverse (96625), we obtain a triangular number (43956 = T296).

It can be divided in two parts, 526 and 69, that added together give a palindrome (595).

The spelling of 52669 in words is "fifty-two thousand, six hundred sixty-nine".

Divisors: 1 31 1699 52669