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231084227 = 113173617
BaseRepresentation
bin11011100011000…
…01000011000011
3121002211021222002
431301201003003
5433124143402
634532534215
75504116643
oct1561410303
9532737862
10231084227
11109494000
126548136b
1338b4b93a
1422994523
1515449602
hexdc610c3

231084227 has 8 divisors (see below), whose sum is σ = 254176752. Its totient is φ = 210075360.

The previous prime is 231084221. The next prime is 231084229. The reversal of 231084227 is 722480132.

It is not a de Polignac number, because 231084227 - 24 = 231084211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231084227.

It is not an unprimeable number, because it can be changed into a prime (231084221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85478 + ... + 88139.

It is an arithmetic number, because the mean of its divisors is an integer number (31772094).

Almost surely, 2231084227 is an apocalyptic number.

231084227 is a deficient number, since it is larger than the sum of its proper divisors (23092525).

231084227 is an equidigital number, since it uses as much as digits as its factorization.

231084227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173650 (or 173628 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 231084227 is about 15201.4547659097. The cubic root of 231084227 is about 613.6538091308.

The spelling of 231084227 in words is "two hundred thirty-one million, eighty-four thousand, two hundred twenty-seven".

Divisors: 1 11 121 1331 173617 1909787 21007657 231084227