Base | Representation |
---|---|
bin | 11011011100011… |
… | …10100011001111 |
3 | 121001012111020220 |
4 | 31232032203033 |
5 | 432414101111 |
6 | 34502242423 |
7 | 5463566154 |
oct | 1556164317 |
9 | 531174226 |
10 | 230222031 |
11 | 108a55246 |
12 | 65126413 |
13 | 38909370 |
14 | 2280c22b |
15 | 15328e06 |
hex | db8e8cf |
230222031 has 32 divisors (see below), whose sum is σ = 351671040. Its totient is φ = 132793344.
The previous prime is 230222023. The next prime is 230222051. The reversal of 230222031 is 130222032.
It is not a de Polignac number, because 230222031 - 23 = 230222023 is a prime.
It is a super-2 number, since 2×2302220312 = 106004367115529922, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 230222031.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230222021) 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 31 ways as a sum of consecutive naturals, for example, 70276 + ... + 73478.
It is an arithmetic number, because the mean of its divisors is an integer number (10989720).
Almost surely, 2230222031 is an apocalyptic number.
230222031 is a deficient number, since it is larger than the sum of its proper divisors (121449009).
230222031 is a wasteful number, since it uses less digits than its factorization.
230222031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3335.
The product of its (nonzero) digits is 144, while the sum is 15.
The square root of 230222031 is about 15173.0692676202. The cubic root of 230222031 is about 612.8896588163.
Adding to 230222031 its reverse (130222032), we get a palindrome (360444063).
Subtracting from 230222031 its reverse (130222032), we obtain a palindrome (99999999).
The spelling of 230222031 in words is "two hundred thirty million, two hundred twenty-two thousand, thirty-one".
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