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230231312 = 2423476131
BaseRepresentation
bin11011011100100…
…00110100010000
3121001012221222122
431232100310100
5432414400222
634502353412
75463635213
oct1556206420
9531187878
10230231312
11108a61213
126512b868
133891065c
142281177a
151532ba42
hexdb90d10

230231312 has 20 divisors (see below), whose sum is σ = 446336016. Its totient is φ = 115047840.

The previous prime is 230231299. The next prime is 230231347. The reversal of 230231312 is 213132032.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34487 + ... + 40617.

Almost surely, 2230231312 is an apocalyptic number.

It is an amenable number.

230231312 is a deficient number, since it is larger than the sum of its proper divisors (216104704).

230231312 is a wasteful number, since it uses less digits than its factorization.

230231312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8486 (or 8480 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 230231312 is about 15173.3751024615. The cubic root of 230231312 is about 612.8978945651.

Adding to 230231312 its reverse (213132032), we get a palindrome (443363344).

The spelling of 230231312 in words is "two hundred thirty million, two hundred thirty-one thousand, three hundred twelve".

Divisors: 1 2 4 8 16 2347 4694 6131 9388 12262 18776 24524 37552 49048 98096 14389457 28778914 57557828 115115656 230231312