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250293 = 383431
BaseRepresentation
bin111101000110110101
3110201100010
4331012311
531002133
65210433
72061501
oct750665
9421303
10250293
1116105a
12100a19
1389c04
1467301
154e263
hex3d1b5

250293 has 4 divisors (see below), whose sum is σ = 333728. Its totient is φ = 166860.

The previous prime is 250279. The next prime is 250301. The reversal of 250293 is 392052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 250293 - 28 = 250037 is a prime.

It is a d-powerful number, because it can be written as 210 + 52 + 216 + 0 + 94 + 311 .

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 250293.

It is not an unprimeable number, because it can be changed into a prime (250253) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 41713 + ... + 41718.

It is an arithmetic number, because the mean of its divisors is an integer number (83432).

2250293 is an apocalyptic number.

It is an amenable number.

250293 is a deficient number, since it is larger than the sum of its proper divisors (83435).

250293 is an equidigital number, since it uses as much as digits as its factorization.

250293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83434.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 250293 is about 500.2929142013. The cubic root of 250293 is about 63.0206533444.

The spelling of 250293 in words is "two hundred fifty thousand, two hundred ninety-three".

Divisors: 1 3 83431 250293