Base | Representation |
---|---|
bin | 11011011011111… |
… | …10001111000101 |
3 | 121001002002120212 |
4 | 31231332033011 |
5 | 432404431310 |
6 | 34501005205 |
7 | 5463200300 |
oct | 1555761705 |
9 | 531062525 |
10 | 230155205 |
11 | 108a0a015 |
12 | 650b3805 |
13 | 388b4b17 |
14 | 227d1b37 |
15 | 15314205 |
hex | db7e3c5 |
230155205 has 24 divisors (see below), whose sum is σ = 323670168. Its totient is φ = 156645888.
The previous prime is 230155201. The next prime is 230155229. The reversal of 230155205 is 502551032.
It can be written as a sum of positive squares in 4 ways, for example, as 56644 + 230098561 = 238^2 + 15169^2 .
It is not a de Polignac number, because 230155205 - 22 = 230155201 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230155201) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30137 + ... + 36993.
It is an arithmetic number, because the mean of its divisors is an integer number (13486257).
Almost surely, 2230155205 is an apocalyptic number.
It is an amenable number.
230155205 is a deficient number, since it is larger than the sum of its proper divisors (93514963).
230155205 is a wasteful number, since it uses less digits than its factorization.
230155205 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7013 (or 7006 counting only the distinct ones).
The product of its (nonzero) digits is 1500, while the sum is 23.
The square root of 230155205 is about 15170.8669824766. The cubic root of 230155205 is about 612.8303524044.
The spelling of 230155205 in words is "two hundred thirty million, one hundred fifty-five thousand, two hundred five".
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