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250028330 = 2531806543
BaseRepresentation
bin11101110011100…
…10000100101010
3122102110202101112
432321302010222
51003001401310
640450550322
76124130366
oct1671620452
9572422345
10250028330
11119152a92
126b8983a2
133ca52576
14252c62a6
1516e3c705
hexee7212a

250028330 has 16 divisors (see below), whose sum is σ = 464569344. Its totient is φ = 96785040.

The previous prime is 250028293. The next prime is 250028347. The reversal of 250028330 is 33820052.

250028330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 250028296 and 250028305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402962 + ... + 403581.

It is an arithmetic number, because the mean of its divisors is an integer number (29035584).

Almost surely, 2250028330 is an apocalyptic number.

250028330 is a deficient number, since it is larger than the sum of its proper divisors (214541014).

250028330 is a wasteful number, since it uses less digits than its factorization.

250028330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806581.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 250028330 is about 15812.2841487244. The cubic root of 250028330 is about 629.9843197575.

Adding to 250028330 its reverse (33820052), we get a palindrome (283848382).

The spelling of 250028330 in words is "two hundred fifty million, twenty-eight thousand, three hundred thirty".

Divisors: 1 2 5 10 31 62 155 310 806543 1613086 4032715 8065430 25002833 50005666 125014165 250028330