Base | Representation |
---|---|
bin | 11011011101000… |
… | …10010110101001 |
3 | 121001100121112010 |
4 | 31232202112221 |
5 | 432424200040 |
6 | 34504110133 |
7 | 5464354512 |
oct | 1556422651 |
9 | 531317463 |
10 | 230303145 |
11 | 109000186 |
12 | 65165349 |
13 | 38937267 |
14 | 2282da09 |
15 | 15342e80 |
hex | dba25a9 |
230303145 has 16 divisors (see below), whose sum is σ = 369292032. Its totient is φ = 122559360.
The previous prime is 230303113. The next prime is 230303173. The reversal of 230303145 is 541303032.
It is not a de Polignac number, because 230303145 - 25 = 230303113 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9636 + ... + 23525.
It is an arithmetic number, because the mean of its divisors is an integer number (23080752).
Almost surely, 2230303145 is an apocalyptic number.
It is an amenable number.
230303145 is a deficient number, since it is larger than the sum of its proper divisors (138988887).
230303145 is a wasteful number, since it uses less digits than its factorization.
230303145 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 33632.
The product of its (nonzero) digits is 1080, while the sum is 21.
The square root of 230303145 is about 15175.7419917446. The cubic root of 230303145 is about 612.9616300552.
Adding to 230303145 its reverse (541303032), we get a palindrome (771606177).
The spelling of 230303145 in words is "two hundred thirty million, three hundred three thousand, one hundred forty-five".
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