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258004 = 22531217
BaseRepresentation
bin111110111111010100
3111002220201
4332333110
531224004
65310244
72123125
oct767724
9432821
10258004
1116692a
12105384
1390586
146a04c
15516a4
hex3efd4

258004 has 12 divisors (see below), whose sum is σ = 460404. Its totient is φ = 126464.

The previous prime is 257993. The next prime is 258019. The reversal of 258004 is 400852.

It is a happy number.

258004 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 136900 + 121104 = 370^2 + 348^2 .

It is a congruent number.

It is an unprimeable number.

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, 397 + ... + 820.

It is an arithmetic number, because the mean of its divisors is an integer number (38367).

2258004 is an apocalyptic number.

It is an amenable number.

258004 is a deficient number, since it is larger than the sum of its proper divisors (202400).

258004 is a wasteful number, since it uses less digits than its factorization.

258004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274 (or 1272 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 258004 is about 507.9409414489. The cubic root of 258004 is about 63.6612965997.

Adding to 258004 its reverse (400852), we get a palindrome (658856).

The spelling of 258004 in words is "two hundred fifty-eight thousand, four".

Divisors: 1 2 4 53 106 212 1217 2434 4868 64501 129002 258004