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230312312 = 2364344773
BaseRepresentation
bin11011011101001…
…00100101111000
3121001101002002122
431232210211320
5432424443222
634504220412
75464423316
oct1556444570
9531332078
10230312312
1110900705a
126516a708
133893b499
14228330b6
1515345a42
hexdba4978

230312312 has 16 divisors (see below), whose sum is σ = 432516840. Its totient is φ = 114974496.

The previous prime is 230312273. The next prime is 230312323. The reversal of 230312312 is 213213032.

It is a super-2 number, since 2×2303123122 = 106087522117570688, which contains 22 as substring.

It is a congruent number.

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, 17243 + ... + 27530.

Almost surely, 2230312312 is an apocalyptic number.

It is an amenable number.

230312312 is a deficient number, since it is larger than the sum of its proper divisors (202204528).

230312312 is a wasteful number, since it uses less digits than its factorization.

230312312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45422 (or 45418 counting only the distinct ones).

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

The square root of 230312312 is about 15176.0440168049. The cubic root of 230312312 is about 612.9697627342.

Adding to 230312312 its reverse (213213032), we get a palindrome (443525344).

The spelling of 230312312 in words is "two hundred thirty million, three hundred twelve thousand, three hundred twelve".

Divisors: 1 2 4 8 643 1286 2572 5144 44773 89546 179092 358184 28789039 57578078 115156156 230312312