Base | Representation |
---|---|
bin | 100100011101100… |
… | …0001000001010110 |
3 | 10011021002200202202 |
4 | 1020323001001112 |
5 | 10001144231410 |
6 | 321222204502 |
7 | 42213661661 |
oct | 11073010126 |
9 | 3137080682 |
10 | 1223430230 |
11 | 57865a270 |
12 | 2a1883732 |
13 | 166609019 |
14 | b86ac6d8 |
15 | 72617ca5 |
hex | 48ec1056 |
1223430230 has 32 divisors (see below), whose sum is σ = 2405272320. Its totient is φ = 444346720.
The previous prime is 1223430227. The next prime is 1223430233. The reversal of 1223430230 is 320343221.
It is an interprime number because it is at equal distance from previous prime (1223430227) and next prime (1223430233).
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1223430233) 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, 91301 + ... + 103839.
It is an arithmetic number, because the mean of its divisors is an integer number (75164760).
Almost surely, 21223430230 is an apocalyptic number.
1223430230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1223430230 is a deficient number, since it is larger than the sum of its proper divisors (1181842090).
1223430230 is a wasteful number, since it uses less digits than its factorization.
1223430230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13444.
The product of its (nonzero) digits is 864, while the sum is 20.
The square root of 1223430230 is about 34977.5675254870. The cubic root of 1223430230 is about 1069.5302418681.
Adding to 1223430230 its reverse (320343221), we get a palindrome (1543773451).
The spelling of 1223430230 in words is "one billion, two hundred twenty-three million, four hundred thirty thousand, two hundred thirty".
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