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538286228 = 22134571557
BaseRepresentation
bin100000000101011…
…001100010010100
31101111212202212222
4200011121202110
52100300124403
6125225201512
716224233414
oct4005314224
91344782788
10538286228
11256937457
12130330298
138769b87c
14516c0644
15323cc338
hex20159894

538286228 has 6 divisors (see below), whose sum is σ = 942000906. Its totient is φ = 269143112.

The previous prime is 538286183. The next prime is 538286233. The reversal of 538286228 is 822682835.

It can be written as a sum of positive squares in only one way, i.e., 506160004 + 32126224 = 22498^2 + 5668^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67285775 + ... + 67285782.

It is an arithmetic number, because the mean of its divisors is an integer number (157000151).

Almost surely, 2538286228 is an apocalyptic number.

It is an amenable number.

538286228 is a deficient number, since it is larger than the sum of its proper divisors (403714678).

538286228 is a wasteful number, since it uses less digits than its factorization.

538286228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134571561 (or 134571559 counting only the distinct ones).

The product of its digits is 368640, while the sum is 44.

The square root of 538286228 is about 23200.9962717121. The cubic root of 538286228 is about 813.4629103923.

The spelling of 538286228 in words is "five hundred thirty-eight million, two hundred eighty-six thousand, two hundred twenty-eight".

Divisors: 1 2 4 134571557 269143114 538286228