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250421044 = 22318119681
BaseRepresentation
bin11101110110100…
…01111100110100
3122110012201002111
432323101330310
51003101433134
640503220404
76130354336
oct1673217464
9573181074
10250421044
111193a1045
126ba47704
133cb5c243
1425389456
1516eb8c64
hexeed1f34

250421044 has 12 divisors (see below), whose sum is σ = 438396868. Its totient is φ = 125164800.

The previous prime is 250421023. The next prime is 250421051. The reversal of 250421044 is 440124052.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 143712144 + 106708900 = 11988^2 + 10330^2 .

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 3 ways as a sum of consecutive naturals, for example, 2884 + ... + 22564.

Almost surely, 2250421044 is an apocalyptic number.

It is an amenable number.

250421044 is a deficient number, since it is larger than the sum of its proper divisors (187975824).

250421044 is a wasteful number, since it uses less digits than its factorization.

250421044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22866 (or 22864 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 250421044 is about 15824.6972798850. The cubic root of 250421044 is about 630.3139813930.

Adding to 250421044 its reverse (440124052), we get a palindrome (690545096).

The spelling of 250421044 in words is "two hundred fifty million, four hundred twenty-one thousand, forty-four".

Divisors: 1 2 4 3181 6362 12724 19681 39362 78724 62605261 125210522 250421044