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530620 = 22543617
BaseRepresentation
bin10000001100010111100
3222221212121
42001202330
5113434440
615212324
74336666
oct2014274
9887777
10530620
11332732
122170a4
1315769c
14db536
15a734a
hex818bc

530620 has 24 divisors (see below), whose sum is σ = 1142064. Its totient is φ = 206976.

The previous prime is 530609. The next prime is 530641. The reversal of 530620 is 26035.

It is a nialpdrome in base 9.

It is a zygodrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 530594 and 530603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552 + ... + 1168.

It is an arithmetic number, because the mean of its divisors is an integer number (47586).

2530620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 530620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (571032).

530620 is an abundant number, since it is smaller than the sum of its proper divisors (611444).

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

530620 is a wasteful number, since it uses less digits than its factorization.

530620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669 (or 667 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 530620 is about 728.4366822175. The cubic root of 530620 is about 80.9582673810.

Adding to 530620 its reverse (26035), we get a palindrome (556655).

It can be divided in two parts, 5 and 30620, that added together give a square (30625 = 1752).

The spelling of 530620 in words is "five hundred thirty thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 43 86 172 215 430 617 860 1234 2468 3085 6170 12340 26531 53062 106124 132655 265310 530620