Base | Representation |
---|---|
bin | 11011100101000… |
… | …10011100000100 |
3 | 121010022220101010 |
4 | 31302202130010 |
5 | 433211231233 |
6 | 34542402220 |
7 | 5506313553 |
oct | 1562423404 |
9 | 533286333 |
10 | 231352068 |
11 | 109657262 |
12 | 65590370 |
13 | 38c1381c |
14 | 22a23d9a |
15 | 1549db63 |
hex | dca2704 |
231352068 has 12 divisors (see below), whose sum is σ = 539821520. Its totient is φ = 77117352.
The previous prime is 231352067. The next prime is 231352073. The reversal of 231352068 is 860253132.
It is a tau number, because it is divible by the number of its divisors (12).
It is not an unprimeable number, because it can be changed into a prime (231352063) 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, 9639658 + ... + 9639681.
Almost surely, 2231352068 is an apocalyptic number.
It is an amenable number.
231352068 is an abundant number, since it is smaller than the sum of its proper divisors (308469452).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
231352068 is a wasteful number, since it uses less digits than its factorization.
231352068 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19279346 (or 19279344 counting only the distinct ones).
The product of its (nonzero) digits is 8640, while the sum is 30.
The square root of 231352068 is about 15210.2619306835. The cubic root of 231352068 is about 613.8908052413.
The spelling of 231352068 in words is "two hundred thirty-one million, three hundred fifty-two thousand, sixty-eight".
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