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530031223 = 8947912433
BaseRepresentation
bin11111100101111…
…010001001110111
31100221100101011001
4133211322021313
52041141444343
6124332224131
716064122351
oct3745721167
91327311131
10530031223
11252209337
1212960b047
1385a6b357
14505720d1
15317eb44d
hex1f97a277

530031223 has 8 divisors (see below), whose sum is σ = 537148800. Its totient is φ = 522939648.

The previous prime is 530031197. The next prime is 530031233. The reversal of 530031223 is 322130035.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-530031223 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 530031223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530031233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36415 + ... + 48847.

It is an arithmetic number, because the mean of its divisors is an integer number (67143600).

Almost surely, 2530031223 is an apocalyptic number.

530031223 is a deficient number, since it is larger than the sum of its proper divisors (7117577).

530031223 is a wasteful number, since it uses less digits than its factorization.

530031223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13001.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 530031223 is about 23022.4069766825. The cubic root of 530031223 is about 809.2831248118.

Adding to 530031223 its reverse (322130035), we get a palindrome (852161258).

The spelling of 530031223 in words is "five hundred thirty million, thirty-one thousand, two hundred twenty-three".

Divisors: 1 89 479 12433 42631 1106537 5955407 530031223