Base | Representation |
---|---|
bin | 11011011011100… |
… | …11101100010101 |
3 | 121000222220100110 |
4 | 31231303230111 |
5 | 432402041041 |
6 | 34500033233 |
7 | 5462630346 |
oct | 1555635425 |
9 | 530886313 |
10 | 230112021 |
11 | 10898a627 |
12 | 65092819 |
13 | 3889b279 |
14 | 227c00cd |
15 | 15306516 |
hex | db73b15 |
230112021 has 16 divisors (see below), whose sum is σ = 323302400. Its totient is φ = 145181808.
The previous prime is 230112019. The next prime is 230112041. The reversal of 230112021 is 120211032.
It is not a de Polignac number, because 230112021 - 21 = 230112019 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 230111988 and 230112006.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230112011) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81780 + ... + 84546.
It is an arithmetic number, because the mean of its divisors is an integer number (20206400).
Almost surely, 2230112021 is an apocalyptic number.
It is an amenable number.
230112021 is a deficient number, since it is larger than the sum of its proper divisors (93190379).
230112021 is a wasteful number, since it uses less digits than its factorization.
230112021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4248.
The product of its (nonzero) digits is 24, while the sum is 12.
The square root of 230112021 is about 15169.4436615190. The cubic root of 230112021 is about 612.7920215727.
Adding to 230112021 its reverse (120211032), we get a palindrome (350323053).
The spelling of 230112021 in words is "two hundred thirty million, one hundred twelve thousand, twenty-one".
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