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545145224 = 231352110061
BaseRepresentation
bin100000011111100…
…100000110001000
31101222210020122212
4200133210012020
52104024121344
6130032204252
716336441451
oct4037440610
91358706585
10545145224
1125a7a1748
12132699688
1388c30850
1452588128
1532cd479e
hex207e4188

545145224 has 32 divisors (see below), whose sum is σ = 1102996440. Its totient is φ = 251097600.

The previous prime is 545145221. The next prime is 545145311. The reversal of 545145224 is 422541545.

It can be written as a sum of positive squares in 4 ways, for example, as 339222724 + 205922500 = 18418^2 + 14350^2 .

It is not an unprimeable number, because it can be changed into a prime (545145221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49154 + ... + 59214.

Almost surely, 2545145224 is an apocalyptic number.

It is an amenable number.

545145224 is an abundant number, since it is smaller than the sum of its proper divisors (557851216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545145224 is a wasteful number, since it uses less digits than its factorization.

545145224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10601 (or 10597 counting only the distinct ones).

The product of its digits is 32000, while the sum is 32.

The square root of 545145224 is about 23348.3452090293. The cubic root of 545145224 is about 816.9034631578.

Adding to 545145224 its reverse (422541545), we get a palindrome (967686769).

The spelling of 545145224 in words is "five hundred forty-five million, one hundred forty-five thousand, two hundred twenty-four".

Divisors: 1 2 4 8 13 26 52 104 521 1042 2084 4168 6773 10061 13546 20122 27092 40244 54184 80488 130793 261586 523172 1046344 5241781 10483562 20967124 41934248 68143153 136286306 272572612 545145224