Base | Representation |
---|---|
bin | 1101011001111110101… |
… | …1010111011101010001 |
3 | 211000110212001121122020 |
4 | 3112133223113131101 |
5 | 12233134411243210 |
6 | 253445354002053 |
7 | 22432231334550 |
oct | 3263753273521 |
9 | 730425047566 |
10 | 230312212305 |
11 | 8974726aa2a |
12 | 38777116329 |
13 | 18945299886 |
14 | b20bb9bd97 |
15 | 5ece6c0770 |
hex | 359fad7751 |
230312212305 has 32 divisors (see below), whose sum is σ = 421289164800. Its totient is φ = 105248874432.
The previous prime is 230312212303. The next prime is 230312212313. The reversal of 230312212305 is 503212213032.
It is a happy number.
It is not a de Polignac number, because 230312212305 - 21 = 230312212303 is a prime.
It is not an unprimeable number, because it can be changed into a prime (230312212303) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78645 + ... + 683234.
It is an arithmetic number, because the mean of its divisors is an integer number (13165286400).
Almost surely, 2230312212305 is an apocalyptic number.
It is an amenable number.
230312212305 is a deficient number, since it is larger than the sum of its proper divisors (190976952495).
230312212305 is a wasteful number, since it uses less digits than its factorization.
230312212305 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 764773.
The product of its (nonzero) digits is 2160, while the sum is 24.
Adding to 230312212305 its reverse (503212213032), we get a palindrome (733524425337).
The spelling of 230312212305 in words is "two hundred thirty billion, three hundred twelve million, two hundred twelve thousand, three hundred five".
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