Base | Representation |
---|---|
bin | 100100011101001… |
… | …0000001000110000 |
3 | 10011020201112002211 |
4 | 1020322100020300 |
5 | 10001121330000 |
6 | 321214021504 |
7 | 42212166136 |
oct | 11072201060 |
9 | 3136645084 |
10 | 1223230000 |
11 | 578532893 |
12 | 2a17a7894 |
13 | 166568b45 |
14 | b8659756 |
15 | 725c87ba |
hex | 48e90230 |
1223230000 has 50 divisors (see below), whose sum is σ = 2961586364. Its totient is φ = 489288000.
The previous prime is 1223229991. The next prime is 1223230009. The reversal of 1223230000 is 323221.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (1223229991) and next prime (1223230009).
It is a tau number, because it is divible by the number of its divisors (50).
It is not an unprimeable number, because it can be changed into a prime (1223230009) by changing a digit.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 51162 + ... + 71161.
Almost surely, 21223230000 is an apocalyptic number.
1223230000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1223230000 is an abundant number, since it is smaller than the sum of its proper divisors (1738356364).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1223230000 is an equidigital number, since it uses as much as digits as its factorization.
1223230000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 122351 (or 122330 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 13.
The square root of 1223230000 is about 34974.7051452904. The cubic root of 1223230000 is about 1069.4718912516.
Adding to 1223230000 its reverse (323221), we get a palindrome (1223553221).
The spelling of 1223230000 in words is "one billion, two hundred twenty-three million, two hundred thirty thousand".
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