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255565130 = 2525556513
BaseRepresentation
bin11110011101110…
…01110101001010
3122210220001110012
433032321311022
51010411041010
641205351522
76222160562
oct1716716512
9583801405
10255565130
11121294957
12717085a2
1340c40792
1425d27da2
1517683005
hexf3b9d4a

255565130 has 8 divisors (see below), whose sum is σ = 460017252. Its totient is φ = 102226048.

The previous prime is 255565111. The next prime is 255565133. The reversal of 255565130 is 31565552.

255565130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 211382521 + 44182609 = 14539^2 + 6647^2 .

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

It is not an unprimeable number, because it can be changed into a prime (255565133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12778247 + ... + 12778266.

Almost surely, 2255565130 is an apocalyptic number.

255565130 is a deficient number, since it is larger than the sum of its proper divisors (204452122).

255565130 is a wasteful number, since it uses less digits than its factorization.

255565130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25556520.

The product of its (nonzero) digits is 22500, while the sum is 32.

The square root of 255565130 is about 15986.4045363553. The cubic root of 255565130 is about 634.6006789406.

The spelling of 255565130 in words is "two hundred fifty-five million, five hundred sixty-five thousand, one hundred thirty".

Divisors: 1 2 5 10 25556513 51113026 127782565 255565130