Base | Representation |
---|---|
bin | 11011100000101… |
… | …10010101100100 |
3 | 121002020202012012 |
4 | 31300112111210 |
5 | 433034400322 |
6 | 34522213352 |
7 | 5501403530 |
oct | 1560262544 |
9 | 532222165 |
10 | 230778212 |
11 | 1092a50a5 |
12 | 65354258 |
13 | 38a72572 |
14 | 22914bc0 |
15 | 153d8ae2 |
hex | dc16564 |
230778212 has 12 divisors (see below), whose sum is σ = 461556480. Its totient is φ = 98904936.
The previous prime is 230778209. The next prime is 230778241. The reversal of 230778212 is 212877032.
230778212 is an admirable number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4121012 + ... + 4121067.
It is an arithmetic number, because the mean of its divisors is an integer number (38463040).
Almost surely, 2230778212 is an apocalyptic number.
It is an amenable number.
230778212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
230778212 is a wasteful number, since it uses less digits than its factorization.
230778212 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8242090 (or 8242088 counting only the distinct ones).
The product of its (nonzero) digits is 9408, while the sum is 32.
The square root of 230778212 is about 15191.3861118727. The cubic root of 230778212 is about 613.3828109371.
The spelling of 230778212 in words is "two hundred thirty million, seven hundred seventy-eight thousand, two hundred twelve".
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