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530530520 = 235137091439
BaseRepresentation
bin11111100111110…
…100000011011000
31100222021202001112
4133213310003120
52041303434040
6124351035452
716101302132
oct3747640330
91328252045
10530530520
1125251a483
1212980bb88
1385bb46b0
1450662052
1531899365
hex1f9f40d8

530530520 has 64 divisors (see below), whose sum is σ = 1288224000. Its totient is φ = 195475968.

The previous prime is 530530519. The next prime is 530530541. The reversal of 530530520 is 25035035.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 367961 + ... + 369399.

It is an arithmetic number, because the mean of its divisors is an integer number (20128500).

Almost surely, 2530530520 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 530530520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (644112000).

530530520 is an abundant number, since it is smaller than the sum of its proper divisors (757693480).

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

530530520 is a wasteful number, since it uses less digits than its factorization.

530530520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2172 (or 2168 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 23.

The square root of 530530520 is about 23033.2481426307. The cubic root of 530530520 is about 809.5371638221.

Adding to 530530520 its reverse (25035035), we get a palindrome (555565555).

The spelling of 530530520 in words is "five hundred thirty million, five hundred thirty thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 709 1418 1439 2836 2878 3545 5672 5756 7090 7195 9217 11512 14180 14390 18434 18707 28360 28780 36868 37414 46085 57560 73736 74828 92170 93535 149656 184340 187070 368680 374140 748280 1020251 2040502 4081004 5101255 8162008 10202510 13263263 20405020 26526526 40810040 53053052 66316315 106106104 132632630 265265260 530530520