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257058082 = 2257500113
BaseRepresentation
bin11110101001001…
…10010100100010
3122220200220101201
433110212110202
51011301324312
641301351414
76240646321
oct1724462442
9586626351
10257058082
111221145a6
127210856a
1341344198
14261d60b8
151787a557
hexf526522

257058082 has 8 divisors (see below), whose sum is σ = 387088236. Its totient is φ = 128028672.

The previous prime is 257058073. The next prime is 257058083. The reversal of 257058082 is 280850752.

It can be written as a sum of positive squares in 2 ways, for example, as 256672441 + 385641 = 16021^2 + 621^2 .

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 (257058083) 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 in 3 ways as a sum of consecutive naturals, for example, 249543 + ... + 250570.

Almost surely, 2257058082 is an apocalyptic number.

257058082 is a deficient number, since it is larger than the sum of its proper divisors (130030154).

257058082 is a wasteful number, since it uses less digits than its factorization.

257058082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500372.

The product of its (nonzero) digits is 44800, while the sum is 37.

The square root of 257058082 is about 16033.0309673499. The cubic root of 257058082 is about 635.8340102533.

The spelling of 257058082 in words is "two hundred fifty-seven million, fifty-eight thousand, eighty-two".

Divisors: 1 2 257 514 500113 1000226 128529041 257058082