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530565 = 35731163
BaseRepresentation
bin10000001100010000101
3222221210120
42001202011
5113434230
615212153
74336560
oct2014205
9887716
10530565
11332692
12217059
13157659
14db4d7
15a7310
hex81885

530565 has 32 divisors (see below), whose sum is σ = 1007616. Its totient is φ = 233280.

The previous prime is 530549. The next prime is 530567. The reversal of 530565 is 565035.

It is not a de Polignac number, because 530565 - 24 = 530549 is a prime.

530565 is a lucky number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530567) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3174 + ... + 3336.

It is an arithmetic number, because the mean of its divisors is an integer number (31488).

2530565 is an apocalyptic number.

It is an amenable number.

530565 is a deficient number, since it is larger than the sum of its proper divisors (477051).

530565 is a wasteful number, since it uses less digits than its factorization.

530565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 530565 is about 728.3989291590. The cubic root of 530565 is about 80.9554701133.

The spelling of 530565 in words is "five hundred thirty thousand, five hundred sixty-five".

Divisors: 1 3 5 7 15 21 31 35 93 105 155 163 217 465 489 651 815 1085 1141 2445 3255 3423 5053 5705 15159 17115 25265 35371 75795 106113 176855 530565