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530945169 = 3176981723
BaseRepresentation
bin11111101001011…
…001010010010001
31101000001210211220
4133221121102101
52041410221134
6124403555253
716104650046
oct3751312221
91330053756
10530945169
11252782a67
1212998bb29
1385ccb351
145072d1cd
153192c149
hex1fa59491

530945169 has 4 divisors (see below), whose sum is σ = 707926896. Its totient is φ = 353963444.

The previous prime is 530945119. The next prime is 530945197. The reversal of 530945169 is 961549035.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 530945169 - 28 = 530944913 is a prime.

It is a super-2 number, since 2×5309451692 = 563805544968877122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 530945169.

It is not an unprimeable number, because it can be changed into a prime (530945119) 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, 88490859 + ... + 88490864.

It is an arithmetic number, because the mean of its divisors is an integer number (176981724).

Almost surely, 2530945169 is an apocalyptic number.

It is an amenable number.

530945169 is a deficient number, since it is larger than the sum of its proper divisors (176981727).

530945169 is a wasteful number, since it uses less digits than its factorization.

530945169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176981726.

The product of its (nonzero) digits is 145800, while the sum is 42.

The square root of 530945169 is about 23042.2474815284. The cubic root of 530945169 is about 809.7480133708.

The spelling of 530945169 in words is "five hundred thirty million, nine hundred forty-five thousand, one hundred sixty-nine".

Divisors: 1 3 176981723 530945169