Base | Representation |
---|---|
bin | 11011011101000… |
… | …01010011001111 |
3 | 121001100101121100 |
4 | 31232201103033 |
5 | 432424030311 |
6 | 34504034143 |
7 | 5464336110 |
oct | 1556412317 |
9 | 531311540 |
10 | 230298831 |
11 | 108aa7a14 |
12 | 65162953 |
13 | 389352c9 |
14 | 2282c207 |
15 | 15341a56 |
hex | dba14cf |
230298831 has 48 divisors (see below), whose sum is σ = 395703360. Its totient is φ = 126282240.
The previous prime is 230298821. The next prime is 230298853. The reversal of 230298831 is 138892032.
It is a happy number.
It is not a de Polignac number, because 230298831 - 25 = 230298799 is a prime.
It is a super-2 number, since 2×2302988312 = 106075103119933122, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230298821) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 425421 + ... + 425961.
It is an arithmetic number, because the mean of its divisors is an integer number (8243820).
Almost surely, 2230298831 is an apocalyptic number.
230298831 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
230298831 is a deficient number, since it is larger than the sum of its proper divisors (165404529).
230298831 is a wasteful number, since it uses less digits than its factorization.
230298831 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 816 (or 813 counting only the distinct ones).
The product of its (nonzero) digits is 20736, while the sum is 36.
The square root of 230298831 is about 15175.5998563483. The cubic root of 230298831 is about 612.9578027330.
The spelling of 230298831 in words is "two hundred thirty million, two hundred ninety-eight thousand, eight hundred thirty-one".
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