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530445223 = 7115921979
BaseRepresentation
bin11111100111011…
…111001110100111
31100222010102001101
4133213133032213
52041243221343
6124345140531
716100465350
oct3747371647
91328112041
10530445223
11252471390
1212978a747
1385b84919
145063cd27
153187de4d
hex1f9df3a7

530445223 has 24 divisors (see below), whose sum is σ = 673073280. Its totient is φ = 406122960.

The previous prime is 530445221. The next prime is 530445239. The reversal of 530445223 is 322544035.

It is not a de Polignac number, because 530445223 - 21 = 530445221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 530445191 and 530445200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530445221) 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, 267048 + ... + 269026.

It is an arithmetic number, because the mean of its divisors is an integer number (28044720).

Almost surely, 2530445223 is an apocalyptic number.

530445223 is a deficient number, since it is larger than the sum of its proper divisors (142628057).

530445223 is a wasteful number, since it uses less digits than its factorization.

530445223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2115 (or 2056 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 530445223 is about 23031.3964622209. The cubic root of 530445223 is about 809.4937765649.

Adding to 530445223 its reverse (322544035), we get a palindrome (852989258).

The spelling of 530445223 in words is "five hundred thirty million, four hundred forty-five thousand, two hundred twenty-three".

Divisors: 1 7 11 59 77 413 649 1979 3481 4543 13853 21769 24367 38291 116761 152383 268037 817327 1284371 6888899 8990597 48222293 75777889 530445223