Base | Representation |
---|---|
bin | 11011011100000… |
… | …10110001110111 |
3 | 121001010001010010 |
4 | 31232002301313 |
5 | 432411030230 |
6 | 34501231303 |
7 | 5463305454 |
oct | 1556026167 |
9 | 531101103 |
10 | 230173815 |
11 | 108a21aa3 |
12 | 65102533 |
13 | 388c0431 |
14 | 227d882b |
15 | 153199b0 |
hex | db82c77 |
230173815 has 16 divisors (see below), whose sum is σ = 370152288. Its totient is φ = 122134656.
The previous prime is 230173789. The next prime is 230173819. The reversal of 230173815 is 518371032.
It is not a de Polignac number, because 230173815 - 216 = 230108279 is a prime.
It is a super-2 number, since 2×2301738152 = 105959970223308450, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230173819) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35992 + ... + 41901.
It is an arithmetic number, because the mean of its divisors is an integer number (23134518).
Almost surely, 2230173815 is an apocalyptic number.
230173815 is a deficient number, since it is larger than the sum of its proper divisors (139978473).
230173815 is a wasteful number, since it uses less digits than its factorization.
230173815 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 78098.
The product of its (nonzero) digits is 5040, while the sum is 30.
The square root of 230173815 is about 15171.4803166995. The cubic root of 230173815 is about 612.8468694694.
The spelling of 230173815 in words is "two hundred thirty million, one hundred seventy-three thousand, eight hundred fifteen".
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