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530789 = 7191397
BaseRepresentation
bin10000001100101100101
3222222002212
42001211211
5113441124
615213205
74340330
oct2014545
9888085
10530789
11332876
12217205
1315779c
14db617
15a740e
hex81965

530789 has 8 divisors (see below), whose sum is σ = 611328. Its totient is φ = 451440.

The previous prime is 530773. The next prime is 530797. The reversal of 530789 is 987035.

Added to its reverse (987035) it gives a square (1517824 = 12322).

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 530789 - 24 = 530773 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 530789.

It is not an unprimeable number, because it can be changed into a prime (530389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1139 + ... + 1535.

It is an arithmetic number, because the mean of its divisors is an integer number (76416).

2530789 is an apocalyptic number.

It is an amenable number.

530789 is a deficient number, since it is larger than the sum of its proper divisors (80539).

530789 is a wasteful number, since it uses less digits than its factorization.

530789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 530789 is about 728.5526748287. The cubic root of 530789 is about 80.9668614125.

Adding to 530789 its reverse (987035), we get a square (1517824 = 12322).

The spelling of 530789 in words is "five hundred thirty thousand, seven hundred eighty-nine".

Divisors: 1 7 191 397 1337 2779 75827 530789