Base | Representation |
---|---|
bin | 11011011011101… |
… | …10011000000101 |
3 | 121001000110102120 |
4 | 31231312120011 |
5 | 432402414023 |
6 | 34500200153 |
7 | 5463004401 |
oct | 1555663005 |
9 | 531013376 |
10 | 230123013 |
11 | 10899790a |
12 | 65099059 |
13 | 388a3283 |
14 | 227c4101 |
15 | 153098e3 |
hex | db76605 |
230123013 has 16 divisors (see below), whose sum is σ = 317907456. Its totient is φ = 147913920.
The previous prime is 230122987. The next prime is 230123021. The reversal of 230123013 is 310321032.
It is not a de Polignac number, because 230123013 - 28 = 230122757 is a prime.
It is a super-2 number, since 2×2301230132 = 105913202224396338, which contains 22 as substring.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 230122983 and 230123001.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230123213) 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, 21295 + ... + 30227.
It is an arithmetic number, because the mean of its divisors is an integer number (19869216).
Almost surely, 2230123013 is an apocalyptic number.
It is an amenable number.
230123013 is a deficient number, since it is larger than the sum of its proper divisors (87784443).
230123013 is a wasteful number, since it uses less digits than its factorization.
230123013 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9244.
The product of its (nonzero) digits is 108, while the sum is 15.
The square root of 230123013 is about 15169.8059644809. The cubic root of 230123013 is about 612.8017787084.
Adding to 230123013 its reverse (310321032), we get a palindrome (540444045).
The spelling of 230123013 in words is "two hundred thirty million, one hundred twenty-three thousand, thirteen".
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