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530256630 = 23517675221
BaseRepresentation
bin11111100110110…
…001001011110110
31100221202211100110
4133212301023312
52041221203010
6124341123450
716066051461
oct3746611366
91327684313
10530256630
11252352722
121296b9586
1385b19b27
14505d02d8
1531843120
hex1f9b12f6

530256630 has 16 divisors (see below), whose sum is σ = 1272615984. Its totient is φ = 141401760.

The previous prime is 530256593. The next prime is 530256637. The reversal of 530256630 is 36652035.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 17675221 = 530256630 / (5 + 3 + 0 + 2 + 5 + 6 + 6 + 3 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530256637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8837581 + ... + 8837640.

It is an arithmetic number, because the mean of its divisors is an integer number (79538499).

Almost surely, 2530256630 is an apocalyptic number.

530256630 is an abundant number, since it is smaller than the sum of its proper divisors (742359354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

530256630 is a wasteful number, since it uses less digits than its factorization.

530256630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17675231.

The product of its (nonzero) digits is 16200, while the sum is 30.

The square root of 530256630 is about 23027.3018393385. The cubic root of 530256630 is about 809.3978301477.

The spelling of 530256630 in words is "five hundred thirty million, two hundred fifty-six thousand, six hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 17675221 35350442 53025663 88376105 106051326 176752210 265128315 530256630