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255345253 = 17411093361
BaseRepresentation
bin11110011100001…
…00001001100101
3122210110212211121
433032010021211
51010332022003
641200533541
76220253542
oct1716041145
9583425747
10255345253
11121154739
12716212b1
1340b94687
1425cabbc9
151763ccbd
hexf384265

255345253 has 16 divisors (see below), whose sum is σ = 279583920. Its totient is φ = 232243200.

The previous prime is 255345247. The next prime is 255345269. The reversal of 255345253 is 352543552.

It can be written as a sum of positive squares in 8 ways, for example, as 2439844 + 252905409 = 1562^2 + 15903^2 .

It is a cyclic number.

It is not a de Polignac number, because 255345253 - 25 = 255345221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255345283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74293 + ... + 77653.

It is an arithmetic number, because the mean of its divisors is an integer number (17473995).

Almost surely, 2255345253 is an apocalyptic number.

It is an amenable number.

255345253 is a deficient number, since it is larger than the sum of its proper divisors (24238667).

255345253 is a wasteful number, since it uses less digits than its factorization.

255345253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3528.

The product of its digits is 90000, while the sum is 34.

The square root of 255345253 is about 15979.5260568016. The cubic root of 255345253 is about 634.4186325494.

The spelling of 255345253 in words is "two hundred fifty-five million, three hundred forty-five thousand, two hundred fifty-three".

Divisors: 1 17 41 109 697 1853 3361 4469 57137 75973 137801 366349 2342617 6227933 15020309 255345253