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530603869 = 661802729
BaseRepresentation
bin11111101000000…
…101111101011101
31100222102110200011
4133220011331131
52041313310434
6124352403221
716102026025
oct3750057535
91328373604
10530603869
1125256a5a4
12129846511
1385c0bbb3
1450680a85
15318b0e64
hex1fa05f5d

530603869 has 4 divisors (see below), whose sum is σ = 531407260. Its totient is φ = 529800480.

The previous prime is 530603867. The next prime is 530603873. The reversal of 530603869 is 968306035.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 149768644 + 380835225 = 12238^2 + 19515^2 .

It is a cyclic number.

It is not a de Polignac number, because 530603869 - 21 = 530603867 is a prime.

It is a super-2 number, since 2×5306038692 = 563080931595538322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530603863) 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, 400704 + ... + 402025.

It is an arithmetic number, because the mean of its divisors is an integer number (132851815).

Almost surely, 2530603869 is an apocalyptic number.

It is an amenable number.

530603869 is a deficient number, since it is larger than the sum of its proper divisors (803391).

530603869 is an equidigital number, since it uses as much as digits as its factorization.

530603869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803390.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 530603869 is about 23034.8403293793. The cubic root of 530603869 is about 809.5744698789.

The spelling of 530603869 in words is "five hundred thirty million, six hundred three thousand, eight hundred sixty-nine".

Divisors: 1 661 802729 530603869