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250240345 = 5238532551
BaseRepresentation
bin11101110101001…
…01110101011001
3122102212112012221
432322211311121
51003030142340
640455304041
76126002455
oct1672456531
9572775187
10250240345
11119288303
126b97b021
133cac7c14
142533d665
1516e8044a
hexeea5d59

250240345 has 16 divisors (see below), whose sum is σ = 313834752. Its totient is φ = 191188800.

The previous prime is 250240337. The next prime is 250240351. The reversal of 250240345 is 543042052.

It is not a de Polignac number, because 250240345 - 23 = 250240337 is a prime.

It is a Duffinian 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 15 ways as a sum of consecutive naturals, for example, 96820 + ... + 99370.

It is an arithmetic number, because the mean of its divisors is an integer number (19614672).

Almost surely, 2250240345 is an apocalyptic number.

It is an amenable number.

250240345 is a deficient number, since it is larger than the sum of its proper divisors (63594407).

250240345 is a wasteful number, since it uses less digits than its factorization.

250240345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3432.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 250240345 is about 15818.9868512494. The cubic root of 250240345 is about 630.1623374382.

Adding to 250240345 its reverse (543042052), we get a palindrome (793282397).

The spelling of 250240345 in words is "two hundred fifty million, two hundred forty thousand, three hundred forty-five".

Divisors: 1 5 23 115 853 2551 4265 12755 19619 58673 98095 293365 2176003 10880015 50048069 250240345