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530542530 = 232572971409
BaseRepresentation
bin11111100111110…
…110111111000010
31100222022100112100
4133213312333002
52041304330110
6124351211230
716101352140
oct3747667702
91328270470
10530542530
11252528501
12129816b16
1385bb9cbb
1450666590
153189cbc0
hex1f9f6fc2

530542530 has 192 divisors, whose sum is σ = 1657843200. Its totient is φ = 115153920.

The previous prime is 530542517. The next prime is 530542549. The reversal of 530542530 is 35245035.

It is a super-2 number, since 2×5305425302 = 562950752277601800, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 530542494 and 530542503.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1296966 + ... + 1297374.

It is an arithmetic number, because the mean of its divisors is an integer number (8634600).

Almost surely, 2530542530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 530542530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (828921600).

530542530 is an abundant number, since it is smaller than the sum of its proper divisors (1127300670).

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

530542530 is a wasteful number, since it uses less digits than its factorization.

530542530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529 (or 526 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 530542530 is about 23033.5088512367. The cubic root of 530542530 is about 809.5432724672.

Adding to 530542530 its reverse (35245035), we get a palindrome (565787565).

The spelling of 530542530 in words is "five hundred thirty million, five hundred forty-two thousand, five hundred thirty".