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255420107 = 3476171193
BaseRepresentation
bin11110011100101…
…10011011001011
3122210121200111222
433032112123023
51010341420412
641202312255
76221015015
oct1716263313
9583550458
10255420107
111211a59a8
127165868b
1340bbc777
1425ccb1b5
1517655072
hexf3966cb

255420107 has 8 divisors (see below), whose sum is σ = 256786416. Its totient is φ = 254058112.

The previous prime is 255420089. The next prime is 255420131. The reversal of 255420107 is 701024552.

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 255420107 - 28 = 255419851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255420007) 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 7 ways as a sum of consecutive naturals, for example, 213503 + ... + 214695.

It is an arithmetic number, because the mean of its divisors is an integer number (32098302).

Almost surely, 2255420107 is an apocalyptic number.

255420107 is a deficient number, since it is larger than the sum of its proper divisors (1366309).

255420107 is a wasteful number, since it uses less digits than its factorization.

255420107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2157.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 255420107 is about 15981.8680697846. The cubic root of 255420107 is about 634.4806193850.

Adding to 255420107 its reverse (701024552), we get a palindrome (956444659).

The spelling of 255420107 in words is "two hundred fifty-five million, four hundred twenty thousand, one hundred seven".

Divisors: 1 347 617 1193 214099 413971 736081 255420107