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231023568 = 2434812991
BaseRepresentation
bin11011100010100…
…10001111010000
3121002201012202110
431301102033100
5433120223233
634531345320
75503445046
oct1561221720
9532635673
10231023568
11109452476
1265452240
1338b2a149
142297a396
1515436663
hexdc523d0

231023568 has 20 divisors (see below), whose sum is σ = 596811008. Its totient is φ = 77007840.

The previous prime is 231023549. The next prime is 231023579. The reversal of 231023568 is 865320132.

231023568 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2406448 + ... + 2406543.

Almost surely, 2231023568 is an apocalyptic number.

It is an amenable number.

231023568 is an abundant number, since it is smaller than the sum of its proper divisors (365787440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231023568 is a wasteful number, since it uses less digits than its factorization.

231023568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4813002 (or 4812996 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 231023568 is about 15199.4594640731. The cubic root of 231023568 is about 613.6001102632.

It can be divided in two parts, 2310 and 23568, that added together give a triangular number (25878 = T227).

The spelling of 231023568 in words is "two hundred thirty-one million, twenty-three thousand, five hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 4812991 9625982 14438973 19251964 28877946 38503928 57755892 77007856 115511784 231023568