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257034 = 2342839
BaseRepresentation
bin111110110000001010
3111001120210
4332300022
531211114
65301550
72120241
oct766012
9431523
10257034
11166128
121048b6
138ccbb
1469958
1551259
hex3ec0a

257034 has 8 divisors (see below), whose sum is σ = 514080. Its totient is φ = 85676.

The previous prime is 257017. The next prime is 257053. The reversal of 257034 is 430752.

It is a happy number.

257034 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

257034 is an admirable number.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 257034.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 257034.

It is an unprimeable number.

257034 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21414 + ... + 21425.

It is an arithmetic number, because the mean of its divisors is an integer number (64260).

2257034 is an apocalyptic number.

257034 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

257034 is a wasteful number, since it uses less digits than its factorization.

257034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42844.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 257034 is about 506.9852068848. The cubic root of 257034 is about 63.5814153998.

Adding to 257034 its reverse (430752), we get a palindrome (687786).

The spelling of 257034 in words is "two hundred fifty-seven thousand, thirty-four".

Divisors: 1 2 3 6 42839 85678 128517 257034