Base | Representation |
---|---|
bin | 111010110111… |
… | …1001101000011 |
3 | 2011002001201100 |
4 | 1311233031003 |
5 | 30400123240 |
6 | 3021305443 |
7 | 523225035 |
oct | 165571503 |
9 | 64061640 |
10 | 30864195 |
11 | 164707aa |
12 | a405283 |
13 | 651844b |
14 | 4155c55 |
15 | 2a99e30 |
hex | 1d6f343 |
30864195 has 24 divisors (see below), whose sum is σ = 54639936. Its totient is φ = 16109568.
The previous prime is 30864193. The next prime is 30864199. The reversal of 30864195 is 59146803.
30864195 is a `hidden beast` number, since 3 + 0 + 8 + 641 + 9 + 5 = 666.
It is not a de Polignac number, because 30864195 - 21 = 30864193 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30864193) 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, 5182 + ... + 9411.
It is an arithmetic number, because the mean of its divisors is an integer number (2276664).
Almost surely, 230864195 is an apocalyptic number.
30864195 is a deficient number, since it is larger than the sum of its proper divisors (23775741).
30864195 is a wasteful number, since it uses less digits than its factorization.
30864195 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14651 (or 14648 counting only the distinct ones).
The product of its (nonzero) digits is 25920, while the sum is 36.
The square root of 30864195 is about 5555.5553277778. Note that the first 3 decimals coincide. The cubic root of 30864195 is about 313.6786677198.
The spelling of 30864195 in words is "thirty million, eight hundred sixty-four thousand, one hundred ninety-five".
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