Base | Representation |
---|---|
bin | 11011100010110… |
… | …01110100001101 |
3 | 121002202210022222 |
4 | 31301121310031 |
5 | 433122221410 |
6 | 34532145125 |
7 | 5503634405 |
oct | 1561316415 |
9 | 532683288 |
10 | 231054605 |
11 | 109473821 |
12 | 654681a5 |
13 | 38b3b302 |
14 | 22987805 |
15 | 15440955 |
hex | dc59d0d |
231054605 has 8 divisors (see below), whose sum is σ = 277522200. Its totient is φ = 184672576.
The previous prime is 231054589. The next prime is 231054631. The reversal of 231054605 is 506450132.
It can be written as a sum of positive squares in 4 ways, for example, as 9223369 + 221831236 = 3037^2 + 14894^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 231054605 - 24 = 231054589 is a prime.
It is a congruent 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, 15290 + ... + 26379.
It is an arithmetic number, because the mean of its divisors is an integer number (34690275).
Almost surely, 2231054605 is an apocalyptic number.
It is an amenable number.
231054605 is a deficient number, since it is larger than the sum of its proper divisors (46467595).
231054605 is a wasteful number, since it uses less digits than its factorization.
231054605 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 42783.
The product of its (nonzero) digits is 3600, while the sum is 26.
The square root of 231054605 is about 15200.4804200394. The cubic root of 231054605 is about 613.6275871913.
The spelling of 231054605 in words is "two hundred thirty-one million, fifty-four thousand, six hundred five".
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