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530769 = 3176923
BaseRepresentation
bin10000001100101010001
3222222002010
42001211101
5113441034
615213133
74340301
oct2014521
9888063
10530769
11332858
122171a9
13157785
14db601
15a73e9
hex81951

530769 has 4 divisors (see below), whose sum is σ = 707696. Its totient is φ = 353844.

The previous prime is 530767. The next prime is 530773. The reversal of 530769 is 967035.

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 not a de Polignac number, because 530769 - 21 = 530767 is a prime.

It is a super-2 number, since 2×5307692 = 563431462722, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (530767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88459 + ... + 88464.

It is an arithmetic number, because the mean of its divisors is an integer number (176924).

2530769 is an apocalyptic number.

It is an amenable number.

530769 is a deficient number, since it is larger than the sum of its proper divisors (176927).

530769 is a wasteful number, since it uses less digits than its factorization.

530769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176926.

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 530769 is about 728.5389488559. The cubic root of 530769 is about 80.9658444625.

The spelling of 530769 in words is "five hundred thirty thousand, seven hundred sixty-nine".

Divisors: 1 3 176923 530769