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530469 = 353759
BaseRepresentation
bin10000001100000100101
3222221200000
42001200211
5113433334
615211513
74336362
oct2014045
9887600
10530469
11332605
12216b99
131575b4
14db469
15a7299
hex81825

530469 has 24 divisors (see below), whose sum is σ = 829920. Its totient is φ = 338256.

The previous prime is 530447. The next prime is 530501. The reversal of 530469 is 964035.

It is a happy number.

It is not a de Polignac number, because 530469 - 29 = 529957 is a prime.

It is a super-2 number, since 2×5304692 = 562794719922, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

530469 is a lucky number.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8962 + ... + 9020.

It is an arithmetic number, because the mean of its divisors is an integer number (34580).

530469 is a Friedman number, since it can be written as 9^6-4*(3+0)^5, using all its digits and the basic arithmetic operations.

2530469 is an apocalyptic number.

530469 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

530469 is a deficient number, since it is larger than the sum of its proper divisors (299451).

530469 is an equidigital number, since it uses as much as digits as its factorization.

530469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 530469 is about 728.3330282227. Note that the first 3 decimals coincide. The cubic root of 530469 is about 80.9505871465.

It can be divided in two parts, 530 and 469, that added together give a palindrome (999).

The spelling of 530469 in words is "five hundred thirty thousand, four hundred sixty-nine".

Divisors: 1 3 9 27 37 59 81 111 177 243 333 531 999 1593 2183 2997 4779 6549 8991 14337 19647 58941 176823 530469