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538287922 = 21971366213
BaseRepresentation
bin100000000101011…
…001111100110010
31101111212212012201
4200011121330302
52100300203142
6125225213414
716224241354
oct4005317462
91344785181
10538287922
11256938757
1213033126a
138769c583
14516c10d4
15323ccab7
hex20159f32

538287922 has 8 divisors (see below), whose sum is σ = 811531116. Its totient is φ = 267777552.

The previous prime is 538287901. The next prime is 538287923. The reversal of 538287922 is 229782835.

It can be written as a sum of positive squares in 2 ways, for example, as 538286401 + 1521 = 23201^2 + 39^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (538287923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 682713 + ... + 683500.

Almost surely, 2538287922 is an apocalyptic number.

538287922 is a deficient number, since it is larger than the sum of its proper divisors (273243194).

538287922 is a wasteful number, since it uses less digits than its factorization.

538287922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366412.

The product of its digits is 483840, while the sum is 46.

The square root of 538287922 is about 23201.0327787364. The cubic root of 538287922 is about 813.4637637206.

The spelling of 538287922 in words is "five hundred thirty-eight million, two hundred eighty-seven thousand, nine hundred twenty-two".

Divisors: 1 2 197 394 1366213 2732426 269143961 538287922