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249349 = 389641
BaseRepresentation
bin111100111000000101
3110200001011
4330320011
530434344
65202221
72055652
oct747005
9420034
10249349
11160381
12100371
1389659
1466c29
154dd34
hex3ce05

249349 has 4 divisors (see below), whose sum is σ = 250380. Its totient is φ = 248320.

The previous prime is 249341. The next prime is 249367. The reversal of 249349 is 943942.

249349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 148225 + 101124 = 385^2 + 318^2 .

It is a cyclic number.

It is not a de Polignac number, because 249349 - 23 = 249341 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 25 + 43 + 311 + 9 + 48 + 94 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 249349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69 + ... + 709.

It is an arithmetic number, because the mean of its divisors is an integer number (62595).

2249349 is an apocalyptic number.

It is an amenable number.

249349 is a deficient number, since it is larger than the sum of its proper divisors (1031).

249349 is an equidigital number, since it uses as much as digits as its factorization.

249349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030.

The product of its digits is 7776, while the sum is 31.

The square root of 249349 is about 499.3485756463. The cubic root of 249349 is about 62.9413243897.

The spelling of 249349 in words is "two hundred forty-nine thousand, three hundred forty-nine".

Divisors: 1 389 641 249349