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506145228 = 22342178769
BaseRepresentation
bin11110001010110…
…010100111001100
31022021101211201120
4132022302213030
52014033121403
6122120240540
715354110031
oct3612624714
91267354646
10506145228
1123a784446
12121610150
1380b27224
144b315388
152e67de53
hex1e2b29cc

506145228 has 12 divisors (see below), whose sum is σ = 1181005560. Its totient is φ = 168715072.

The previous prime is 506145197. The next prime is 506145229. The reversal of 506145228 is 822541605.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (506145229) 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, 21089373 + ... + 21089396.

It is an arithmetic number, because the mean of its divisors is an integer number (98417130).

Almost surely, 2506145228 is an apocalyptic number.

It is an amenable number.

506145228 is an abundant number, since it is smaller than the sum of its proper divisors (674860332).

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

506145228 is a wasteful number, since it uses less digits than its factorization.

506145228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42178776 (or 42178774 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 506145228 is about 22497.6716128581. The cubic root of 506145228 is about 796.9389419264.

The spelling of 506145228 in words is "five hundred six million, one hundred forty-five thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 12 42178769 84357538 126536307 168715076 253072614 506145228