Base | Representation |
---|---|
bin | 11011100001000… |
… | …00010110011111 |
3 | 121002022211110102 |
4 | 31300200112133 |
5 | 433042203411 |
6 | 34523131315 |
7 | 5501634236 |
oct | 1560402637 |
9 | 532284412 |
10 | 230819231 |
11 | 1093229a5 |
12 | 65373b3b |
13 | 38a88136 |
14 | 22925b1d |
15 | 153e5d3b |
hex | dc2059f |
230819231 has 4 divisors (see below), whose sum is σ = 231241752. Its totient is φ = 230396712.
The previous prime is 230819219. The next prime is 230819233. The reversal of 230819231 is 132918032.
230819231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-230819231 is a prime.
It is a super-2 number, since 2×2308192312 = 106555034798862722, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 230819194 and 230819203.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230819233) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210440 + ... + 211533.
It is an arithmetic number, because the mean of its divisors is an integer number (57810438).
Almost surely, 2230819231 is an apocalyptic number.
230819231 is a deficient number, since it is larger than the sum of its proper divisors (422521).
230819231 is an equidigital number, since it uses as much as digits as its factorization.
230819231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 422520.
The product of its (nonzero) digits is 2592, while the sum is 29.
The square root of 230819231 is about 15192.7361261887. The cubic root of 230819231 is about 613.4191500969.
The spelling of 230819231 in words is "two hundred thirty million, eight hundred nineteen thousand, two hundred thirty-one".
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