Base | Representation |
---|---|
bin | 11011100111110… |
… | …11000010101001 |
3 | 121011000100012111 |
4 | 31303323002221 |
5 | 433304334420 |
6 | 34554242321 |
7 | 5512354615 |
oct | 1563730251 |
9 | 534010174 |
10 | 231714985 |
11 | 109884997 |
12 | 657263a1 |
13 | 3900ca78 |
14 | 22aba345 |
15 | 1552145a |
hex | dcfb0a9 |
231714985 has 8 divisors (see below), whose sum is σ = 284840136. Its totient is φ = 180850560.
The previous prime is 231714953. The next prime is 231714991. The reversal of 231714985 is 589417132.
It can be written as a sum of positive squares in 4 ways, for example, as 26337424 + 205377561 = 5132^2 + 14331^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 231714985 - 25 = 231714953 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564954 + ... + 565363.
It is an arithmetic number, because the mean of its divisors is an integer number (35605017).
Almost surely, 2231714985 is an apocalyptic number.
It is an amenable number.
231714985 is a deficient number, since it is larger than the sum of its proper divisors (53125151).
231714985 is a wasteful number, since it uses less digits than its factorization.
231714985 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1130363.
The product of its digits is 60480, while the sum is 40.
The square root of 231714985 is about 15222.1872607060. The cubic root of 231714985 is about 614.2116366285.
The spelling of 231714985 in words is "two hundred thirty-one million, seven hundred fourteen thousand, nine hundred eighty-five".
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