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250228525 = 5217588773
BaseRepresentation
bin11101110101000…
…10111100101101
3122102211221000011
432322202330231
51003024303100
640455133221
76125623141
oct1672427455
9572757004
10250228525
1111927a438
126b974211
133cac2721
1425339221
1516e7bbba
hexeea2f2d

250228525 has 12 divisors (see below), whose sum is σ = 328535892. Its totient is φ = 188407040.

The previous prime is 250228519. The next prime is 250228543. The reversal of 250228525 is 525822052.

250228525 = 21902 + 21912 + ... + 22402.

It can be written as a sum of positive squares in 6 ways, for example, as 32695524 + 217533001 = 5718^2 + 14749^2 .

It is not a de Polignac number, because 250228525 - 25 = 250228493 is a prime.

It is a super-2 number, since 2×2502285252 = 125228629447351250, which contains 22 as substring.

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 (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 293962 + ... + 294811.

It is an arithmetic number, because the mean of its divisors is an integer number (27377991).

Almost surely, 2250228525 is an apocalyptic number.

250228525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

250228525 is a deficient number, since it is larger than the sum of its proper divisors (78307367).

250228525 is a wasteful number, since it uses less digits than its factorization.

250228525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588800 (or 588795 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 31.

The square root of 250228525 is about 15818.6132451615. The cubic root of 250228525 is about 630.1524154622.

The spelling of 250228525 in words is "two hundred fifty million, two hundred twenty-eight thousand, five hundred twenty-five".

Divisors: 1 5 17 25 85 425 588773 2943865 10009141 14719325 50045705 250228525