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530104561 = 775729223
BaseRepresentation
bin11111100110001…
…100000011110001
31100221111002202021
4133212030003301
52041201321221
6124333551441
716064546230
oct3746140361
91327432667
10530104561
11252259448
12129645581
1385a9584c
1450590b17
1531813041
hex1f98c0f1

530104561 has 4 divisors (see below), whose sum is σ = 605833792. Its totient is φ = 454375332.

The previous prime is 530104517. The next prime is 530104607. The reversal of 530104561 is 165401035.

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 530104561 - 29 = 530104049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (530104501) 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, 37864605 + ... + 37864618.

It is an arithmetic number, because the mean of its divisors is an integer number (151458448).

Almost surely, 2530104561 is an apocalyptic number.

It is an amenable number.

530104561 is a deficient number, since it is larger than the sum of its proper divisors (75729231).

530104561 is an equidigital number, since it uses as much as digits as its factorization.

530104561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75729230.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 530104561 is about 23023.9996742530. Note that the first 3 decimals coincide. The cubic root of 530104561 is about 809.3204486939.

Adding to 530104561 its reverse (165401035), we get a palindrome (695505596).

The spelling of 530104561 in words is "five hundred thirty million, one hundred four thousand, five hundred sixty-one".

Divisors: 1 7 75729223 530104561