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258229 = 1913591
BaseRepresentation
bin111111000010110101
3111010020001
4333002311
531230404
65311301
72123566
oct770265
9433201
10258229
11167014
12105531
13906ca
146a16d
15517a4
hex3f0b5

258229 has 4 divisors (see below), whose sum is σ = 271840. Its totient is φ = 244620.

The previous prime is 258211. The next prime is 258233. The reversal of 258229 is 922852.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 258229 - 25 = 258197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 258197 and 258206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6777 + ... + 6814.

It is an arithmetic number, because the mean of its divisors is an integer number (67960).

2258229 is an apocalyptic number.

It is an amenable number.

258229 is a deficient number, since it is larger than the sum of its proper divisors (13611).

258229 is a wasteful number, since it uses less digits than its factorization.

258229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13610.

The product of its digits is 2880, while the sum is 28.

The square root of 258229 is about 508.1623756242. The cubic root of 258229 is about 63.6797971267.

The spelling of 258229 in words is "two hundred fifty-eight thousand, two hundred twenty-nine".

Divisors: 1 19 13591 258229