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249588253 = 1237201769
BaseRepresentation
bin11101110000001…
…10101000011101
3122101122101201101
432320012220131
51002343311003
640433313101
76120315355
oct1670065035
9571571641
10249588253
11118982392
126b705791
133c92a175
142520db65
1516da211d
hexee06a1d

249588253 has 4 divisors (see below), whose sum is σ = 249791260. Its totient is φ = 249385248.

The previous prime is 249588247. The next prime is 249588257. The reversal of 249588253 is 352885942.

249588253 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.

It can be written as a sum of positive squares in 2 ways, for example, as 189943524 + 59644729 = 13782^2 + 7723^2 .

It is a cyclic number.

It is not a de Polignac number, because 249588253 - 217 = 249457181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249588257) 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, 99648 + ... + 102121.

It is an arithmetic number, because the mean of its divisors is an integer number (62447815).

Almost surely, 2249588253 is an apocalyptic number.

It is an amenable number.

249588253 is a deficient number, since it is larger than the sum of its proper divisors (203007).

249588253 is a wasteful number, since it uses less digits than its factorization.

249588253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203006.

The product of its digits is 691200, while the sum is 46.

The square root of 249588253 is about 15798.3623518389. The cubic root of 249588253 is about 629.6144890972.

The spelling of 249588253 in words is "two hundred forty-nine million, five hundred eighty-eight thousand, two hundred fifty-three".

Divisors: 1 1237 201769 249588253