Search a number
-
+
530830025 = 52112175481
BaseRepresentation
bin11111101000111…
…101001011001001
31100222211221220022
4133220331023021
52041343030100
6124401310225
716103660255
oct3750751311
91328757808
10530830025
11252704500
12129935375
1385c8ab0b
14506dd265
1531907e85
hex1fa3d2c9

530830025 has 18 divisors (see below), whose sum is σ = 723512286. Its totient is φ = 386056000.

The previous prime is 530829983. The next prime is 530830061. The reversal of 530830025 is 520038035.

It can be written as a sum of positive squares in 3 ways, for example, as 2795584 + 528034441 = 1672^2 + 22979^2 .

It is not a de Polignac number, because 530830025 - 28 = 530829769 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 530829976 and 530830003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 84716 + ... + 90765.

It is an arithmetic number, because the mean of its divisors is an integer number (40195127).

Almost surely, 2530830025 is an apocalyptic number.

530830025 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

530830025 is a deficient number, since it is larger than the sum of its proper divisors (192682261).

530830025 is a wasteful number, since it uses less digits than its factorization.

530830025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175513 (or 175497 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 530830025 is about 23039.7488050543. The cubic root of 530830025 is about 809.6894735117.

The spelling of 530830025 in words is "five hundred thirty million, eight hundred thirty thousand, twenty-five".

Divisors: 1 5 11 25 55 121 275 605 3025 175481 877405 1930291 4387025 9651455 21233201 48257275 106166005 530830025