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298328125 = 5661313
BaseRepresentation
bin10001110010000…
…010000000111101
3202210100122020211
4101302002000331
51102333000000
645334112421
710251514204
oct2162020075
9683318224
10298328125
11143442377
1283aab711
1349a63b24
142b89a23b
151b2cd7ba
hex11c8203d

298328125 has 28 divisors (see below), whose sum is σ = 380229508. Its totient is φ = 234000000.

The previous prime is 298328119. The next prime is 298328137. The reversal of 298328125 is 521823892.

It can be written as a sum of positive squares in 14 ways, for example, as 66161956 + 232166169 = 8134^2 + 15237^2 .

It is not a de Polignac number, because 298328125 - 23 = 298328117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 27 ways as a sum of consecutive naturals, for example, 952969 + ... + 953281.

Almost surely, 2298328125 is an apocalyptic number.

298328125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

298328125 is a deficient number, since it is larger than the sum of its proper divisors (81901383).

298328125 is an frugal number, since it uses more digits than its factorization.

298328125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404 (or 379 counting only the distinct ones).

The product of its digits is 69120, while the sum is 40.

The square root of 298328125 is about 17272.1777723598. The cubic root of 298328125 is about 668.1870681276.

The spelling of 298328125 in words is "two hundred ninety-eight million, three hundred twenty-eight thousand, one hundred twenty-five".

Divisors: 1 5 25 61 125 305 313 625 1525 1565 3125 7625 7825 15625 19093 38125 39125 95465 190625 195625 477325 953125 978125 2386625 4890625 11933125 59665625 298328125