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530230520 = 23513255763
BaseRepresentation
bin11111100110101…
…010110011111000
31100221201111112102
4133212222303320
52041214334040
6124340402532
716065612401
oct3746526370
91327644472
10530230520
11252335046
121296a6448
1385b0ac91
14505c49a8
153183a515
hex1f9aacf8

530230520 has 16 divisors (see below), whose sum is σ = 1193018760. Its totient is φ = 212092192.

The previous prime is 530230517. The next prime is 530230529. The reversal of 530230520 is 25032035.

It is a super-2 number, since 2×5302305202 = 562288808678940800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 530230492 and 530230501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530230529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6627842 + ... + 6627921.

Almost surely, 2530230520 is an apocalyptic number.

It is an amenable number.

530230520 is an abundant number, since it is smaller than the sum of its proper divisors (662788240).

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

530230520 is a wasteful number, since it uses less digits than its factorization.

530230520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13255774 (or 13255770 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 530230520 is about 23026.7348966370. The cubic root of 530230520 is about 809.3845449300.

Adding to 530230520 its reverse (25032035), we get a palindrome (555262555).

The spelling of 530230520 in words is "five hundred thirty million, two hundred thirty thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 13255763 26511526 53023052 66278815 106046104 132557630 265115260 530230520