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255412513 is a prime number
BaseRepresentation
bin11110011100101…
…00100100100001
3122210121022002201
433032110210201
51010341200023
641202213201
76220653616
oct1716244441
9583538081
10255412513
111211a0224
1271654201
1340bb9185
1425cc850d
1517652bad
hexf394921

255412513 has 2 divisors, whose sum is σ = 255412514. Its totient is φ = 255412512.

The previous prime is 255412501. The next prime is 255412571. The reversal of 255412513 is 315214552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 251444449 + 3968064 = 15857^2 + 1992^2 .

It is a cyclic number.

It is not a de Polignac number, because 255412513 - 225 = 221858081 is a prime.

It is not a weakly prime, because it can be changed into another prime (255412583) 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 as a sum of consecutive naturals, namely, 127706256 + 127706257.

It is an arithmetic number, because the mean of its divisors is an integer number (127706257).

Almost surely, 2255412513 is an apocalyptic number.

It is an amenable number.

255412513 is a deficient number, since it is larger than the sum of its proper divisors (1).

255412513 is an equidigital number, since it uses as much as digits as its factorization.

255412513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6000, while the sum is 28.

The square root of 255412513 is about 15981.6304862802. The cubic root of 255412513 is about 634.4743313214.

The spelling of 255412513 in words is "two hundred fifty-five million, four hundred twelve thousand, five hundred thirteen".