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256150369 is a prime number
BaseRepresentation
bin11110100010010…
…00101101100001
3122211222210020201
433101020231201
51011033302434
641230105201
76230146036
oct1721105541
9584883221
10256150369
11121654622
127194b201
13410b6c87
142603b38d
151774b614
hexf448b61

256150369 has 2 divisors, whose sum is σ = 256150370. Its totient is φ = 256150368.

The previous prime is 256150337. The next prime is 256150387. The reversal of 256150369 is 963051652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194323600 + 61826769 = 13940^2 + 7863^2 .

It is a cyclic number.

It is not a de Polignac number, because 256150369 - 25 = 256150337 is a prime.

It is a super-2 number, since 2×2561503692 = 131226023077672322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (256150309) 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, 128075184 + 128075185.

It is an arithmetic number, because the mean of its divisors is an integer number (128075185).

Almost surely, 2256150369 is an apocalyptic number.

It is an amenable number.

256150369 is a deficient number, since it is larger than the sum of its proper divisors (1).

256150369 is an equidigital number, since it uses as much as digits as its factorization.

256150369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48600, while the sum is 37.

The square root of 256150369 is about 16004.6983414246. The cubic root of 256150369 is about 635.0847172399.

The spelling of 256150369 in words is "two hundred fifty-six million, one hundred fifty thousand, three hundred sixty-nine".