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238253 = 892677
BaseRepresentation
bin111010001010101101
3110002211012
4322022231
530111003
65035005
72011421
oct721255
9402735
10238253
11153004
12b5a65
13845a2
1462b81
154a8d8
hex3a2ad

238253 has 4 divisors (see below), whose sum is σ = 241020. Its totient is φ = 235488.

The previous prime is 238247. The next prime is 238261. The reversal of 238253 is 352832.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20164 + 218089 = 142^2 + 467^2 .

It is a cyclic number.

It is not a de Polignac number, because 238253 - 24 = 238237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238213) 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, 1250 + ... + 1427.

It is an arithmetic number, because the mean of its divisors is an integer number (60255).

2238253 is an apocalyptic number.

It is an amenable number.

238253 is a deficient number, since it is larger than the sum of its proper divisors (2767).

238253 is an equidigital number, since it uses as much as digits as its factorization.

238253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2766.

The product of its digits is 1440, while the sum is 23.

The square root of 238253 is about 488.1116675516. Note that the first 3 decimals coincide. The cubic root of 238253 is about 61.9934956756.

The spelling of 238253 in words is "two hundred thirty-eight thousand, two hundred fifty-three".

Divisors: 1 89 2677 238253