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529221325 = 5227297757
BaseRepresentation
bin11111100010110…
…100011011001101
31100212211020011211
4133202310123031
52040440040300
6124303014421
716054210213
oct3742643315
91325736154
10529221325
112518058a6
1212929a411
1385846819
1450400cb3
15316db4ba
hex1f8b46cd

529221325 has 12 divisors (see below), whose sum is σ = 656559540. Its totient is φ = 423167360.

The previous prime is 529221293. The next prime is 529221331. The reversal of 529221325 is 523122925.

It can be written as a sum of positive squares in 6 ways, for example, as 55636681 + 473584644 = 7459^2 + 21762^2 .

It is not a de Polignac number, because 529221325 - 25 = 529221293 is a prime.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 64347 + ... + 72103.

It is an arithmetic number, because the mean of its divisors is an integer number (54713295).

Almost surely, 2529221325 is an apocalyptic number.

It is an amenable number.

529221325 is a deficient number, since it is larger than the sum of its proper divisors (127338215).

529221325 is a wasteful number, since it uses less digits than its factorization.

529221325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10496 (or 10491 counting only the distinct ones).

The product of its digits is 10800, while the sum is 31.

The square root of 529221325 is about 23004.8109098945. The cubic root of 529221325 is about 808.8707145741.

The spelling of 529221325 in words is "five hundred twenty-nine million, two hundred twenty-one thousand, three hundred twenty-five".

Divisors: 1 5 25 2729 7757 13645 38785 68225 193925 21168853 105844265 529221325