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231303112 = 23191521731
BaseRepresentation
bin11011100100101…
…10011111001000
3121010020102012221
431302112133020
5433203144422
634541343424
75506021045
oct1562263710
9533212187
10231303112
111096234a7
1265567b74
1338bc7461
1422a101cc
151548e3c7
hexdc967c8

231303112 has 16 divisors (see below), whose sum is σ = 456519600. Its totient is φ = 109564560.

The previous prime is 231303109. The next prime is 231303113. The reversal of 231303112 is 211303132.

231303112 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2313031123 (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (231303113) 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, 760714 + ... + 761017.

It is an arithmetic number, because the mean of its divisors is an integer number (28532475).

Almost surely, 2231303112 is an apocalyptic number.

It is an amenable number.

231303112 is a deficient number, since it is larger than the sum of its proper divisors (225216488).

231303112 is a wasteful number, since it uses less digits than its factorization.

231303112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521756 (or 1521752 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 231303112 is about 15208.6525372894. The cubic root of 231303112 is about 613.8475007391.

Adding to 231303112 its reverse (211303132), we get a palindrome (442606244).

The spelling of 231303112 in words is "two hundred thirty-one million, three hundred three thousand, one hundred twelve".

Divisors: 1 2 4 8 19 38 76 152 1521731 3043462 6086924 12173848 28912889 57825778 115651556 231303112