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530213045 = 5857123737
BaseRepresentation
bin11111100110100…
…110100010110101
31100221200121120012
4133212212202311
52041213304140
6124340150005
716065510425
oct3746464265
91327617505
10530213045
112523229aa
12129698305
1385b0303b
14505bc485
1531835265
hex1f9a68b5

530213045 has 8 divisors (see below), whose sum is σ = 637003224. Its totient is φ = 423672064.

The previous prime is 530213029. The next prime is 530213053. The reversal of 530213045 is 540312035.

It can be written as a sum of positive squares in 4 ways, for example, as 296459524 + 233753521 = 17218^2 + 15289^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 530213045 - 24 = 530213029 is a prime.

It is a super-2 number, since 2×5302130452 = 562251746176344050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 530213045.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57584 + ... + 66153.

It is an arithmetic number, because the mean of its divisors is an integer number (79625403).

Almost surely, 2530213045 is an apocalyptic number.

It is an amenable number.

530213045 is a deficient number, since it is larger than the sum of its proper divisors (106790179).

530213045 is a wasteful number, since it uses less digits than its factorization.

530213045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124599.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 530213045 is about 23026.3554432741. The cubic root of 530213045 is about 809.3756531054.

The spelling of 530213045 in words is "five hundred thirty million, two hundred thirteen thousand, forty-five".

Divisors: 1 5 857 4285 123737 618685 106042609 530213045