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258293 = 736899
BaseRepresentation
bin111111000011110101
3111010022102
4333003311
531231133
65311445
72124020
oct770365
9433272
10258293
11167072
12105585
1390749
146a1b7
15517e8
hex3f0f5

258293 has 4 divisors (see below), whose sum is σ = 295200. Its totient is φ = 221388.

The previous prime is 258283. The next prime is 258299. The reversal of 258293 is 392852.

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 258293 - 24 = 258277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a zygodrome in base 4.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 258293.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18443 + ... + 18456.

It is an arithmetic number, because the mean of its divisors is an integer number (73800).

2258293 is an apocalyptic number.

It is an amenable number.

258293 is a deficient number, since it is larger than the sum of its proper divisors (36907).

258293 is an equidigital number, since it uses as much as digits as its factorization.

258293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36906.

The product of its digits is 4320, while the sum is 29.

The square root of 258293 is about 508.2253437207. The cubic root of 258293 is about 63.6850575356.

The spelling of 258293 in words is "two hundred fifty-eight thousand, two hundred ninety-three".

Divisors: 1 7 36899 258293