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249824341 = 1361315037
BaseRepresentation
bin11101110010000…
…00010001010101
3122102002101120101
432321000101111
51002423334331
640442334101
76122320564
oct1671002125
9572071511
10249824341
111190237a8
126b7ba331
133c9b0770
1425271bdb
1516dec061
hexee40455

249824341 has 8 divisors (see below), whose sum is σ = 273452984. Its totient is φ = 226825920.

The previous prime is 249824339. The next prime is 249824353. The reversal of 249824341 is 143428942.

It can be written as a sum of positive squares in 4 ways, for example, as 47900241 + 201924100 = 6921^2 + 14210^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 249824341 - 21 = 249824339 is a prime.

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 249824341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249824041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156726 + ... + 158311.

It is an arithmetic number, because the mean of its divisors is an integer number (34181623).

Almost surely, 2249824341 is an apocalyptic number.

It is an amenable number.

249824341 is a deficient number, since it is larger than the sum of its proper divisors (23628643).

249824341 is a wasteful number, since it uses less digits than its factorization.

249824341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315111.

The product of its digits is 55296, while the sum is 37.

The square root of 249824341 is about 15805.8324994288. The cubic root of 249824341 is about 629.8129460628.

The spelling of 249824341 in words is "two hundred forty-nine million, eight hundred twenty-four thousand, three hundred forty-one".

Divisors: 1 13 61 793 315037 4095481 19217257 249824341