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528047225 = 52232931667
BaseRepresentation
bin11111011110010…
…101110001111001
31100210121120121122
4133132111301321
52040140002400
6124221515025
716041220166
oct3736256171
91323546548
10528047225
11251083772
12128a12a75
13855252a4
14501b706d
1531558685
hex1f795c79

528047225 has 24 divisors (see below), whose sum is σ = 706829760. Its totient is φ = 390125120.

The previous prime is 528047213. The next prime is 528047243. The reversal of 528047225 is 522740825.

It is not a de Polignac number, because 528047225 - 28 = 528046969 is a prime.

It is a super-3 number, since 3×5280472253 (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 842 + ... + 32508.

It is an arithmetic number, because the mean of its divisors is an integer number (29451240).

Almost surely, 2528047225 is an apocalyptic number.

It is an amenable number.

528047225 is a deficient number, since it is larger than the sum of its proper divisors (178782535).

528047225 is a wasteful number, since it uses less digits than its factorization.

528047225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31729 (or 31724 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 35.

The square root of 528047225 is about 22979.2781653384. The cubic root of 528047225 is about 808.2721003202.

The spelling of 528047225 in words is "five hundred twenty-eight million, forty-seven thousand, two hundred twenty-five".

Divisors: 1 5 23 25 29 115 145 575 667 725 3335 16675 31667 158335 728341 791675 918343 3641705 4591715 18208525 21121889 22958575 105609445 528047225