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255305275 = 52101101111
BaseRepresentation
bin11110011011110…
…10011000111011
3122210101211222221
433031322120323
51010324232100
641200024511
76220026151
oct1715723073
9583354887
10255305275
111211276a5
1271602137
1340b7c414
1425c9b3d1
151763101a
hexf37a63b

255305275 has 12 divisors (see below), whose sum is σ = 319716144. Its totient is φ = 202220000.

The previous prime is 255305273. The next prime is 255305287. The reversal of 255305275 is 572503552.

It is not a de Polignac number, because 255305275 - 21 = 255305273 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 255305275.

It is not an unprimeable number, because it can be changed into a prime (255305273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48031 + ... + 53080.

It is an arithmetic number, because the mean of its divisors is an integer number (26643012).

Almost surely, 2255305275 is an apocalyptic number.

255305275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

255305275 is a deficient number, since it is larger than the sum of its proper divisors (64410869).

255305275 is a wasteful number, since it uses less digits than its factorization.

255305275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101222 (or 101217 counting only the distinct ones).

The product of its (nonzero) digits is 52500, while the sum is 34.

The square root of 255305275 is about 15978.2750946402. The cubic root of 255305275 is about 634.3855216775.

The spelling of 255305275 in words is "two hundred fifty-five million, three hundred five thousand, two hundred seventy-five".

Divisors: 1 5 25 101 505 2525 101111 505555 2527775 10212211 51061055 255305275