Base | Representation |
---|---|
bin | 11011011110000… |
… | …01011011101000 |
3 | 121001121002010202 |
4 | 31233001123220 |
5 | 432442233230 |
6 | 34510531332 |
7 | 5465424602 |
oct | 1557013350 |
9 | 531532122 |
10 | 230430440 |
11 | 109087889 |
12 | 65206b48 |
13 | 38980196 |
14 | 22864172 |
15 | 1536aa45 |
hex | dbc16e8 |
230430440 has 32 divisors (see below), whose sum is σ = 535196160. Its totient is φ = 89198400.
The previous prime is 230430419. The next prime is 230430479. The reversal of 230430440 is 44034032.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (20).
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91676 + ... + 94155.
It is an arithmetic number, because the mean of its divisors is an integer number (16724880).
Almost surely, 2230430440 is an apocalyptic number.
230430440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
230430440 is an abundant number, since it is smaller than the sum of its proper divisors (304765720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
230430440 is a wasteful number, since it uses less digits than its factorization.
230430440 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 185873 (or 185869 counting only the distinct ones).
The product of its (nonzero) digits is 1152, while the sum is 20.
The square root of 230430440 is about 15179.9354412329. The cubic root of 230430440 is about 613.0745429425.
Adding to 230430440 its reverse (44034032), we get a palindrome (274464472).
The spelling of 230430440 in words is "two hundred thirty million, four hundred thirty thousand, four hundred forty".
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