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530532738 = 232612892
BaseRepresentation
bin11111100111110…
…100100110000010
31100222021212002200
4133213310212002
52041304021423
6124351054030
716101311451
oct3747644602
91328255080
10530532738
1125252110a
12129811316
1385bb56c8
1450662b98
1531899d43
hex1f9f4982

530532738 has 54 divisors (see below), whose sum is σ = 1181918907. Its totient is φ = 171990720.

The previous prime is 530532731. The next prime is 530532767. The reversal of 530532738 is 837235035.

530532738 is a `hidden beast` number, since 53 + 0 + 532 + 73 + 8 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 11923209 + 518609529 = 3453^2 + 22773^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=16287.

It is not an unprimeable number, because it can be changed into a prime (530532731) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 5960998 + ... + 5961086.

Almost surely, 2530532738 is an apocalyptic number.

530532738 is an abundant number, since it is smaller than the sum of its proper divisors (651386169).

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

530532738 is an equidigital number, since it uses as much as digits as its factorization.

530532738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 530532738 is about 23033.2962903706. The cubic root of 530532738 is about 809.5382919702.

The spelling of 530532738 in words is "five hundred thirty million, five hundred thirty-two thousand, seven hundred thirty-eight".

Divisors: 1 2 3 6 9 18 61 89 122 178 183 267 366 534 549 801 1098 1602 3721 5429 7442 7921 10858 11163 15842 16287 22326 23763 32574 33489 47526 48861 66978 71289 97722 142578 331169 483181 662338 966362 993507 1449543 1987014 2899086 2980521 4348629 5961042 8697258 29474041 58948082 88422123 176844246 265266369 530532738