Base | Representation |
---|---|
bin | 100100011101001… |
… | …0000001010100000 |
3 | 10011020201112020222 |
4 | 1020322100022200 |
5 | 10001121330422 |
6 | 321214022212 |
7 | 42212166356 |
oct | 11072201240 |
9 | 3136645228 |
10 | 1223230112 |
11 | 578532985 |
12 | 2a17a7968 |
13 | 166568c00 |
14 | b86597d6 |
15 | 725c8842 |
hex | 48e902a0 |
1223230112 has 36 divisors (see below), whose sum is σ = 2607744510. Its totient is φ = 564565248.
The previous prime is 1223230111. The next prime is 1223230139. The reversal of 1223230112 is 2110323221.
It can be written as a sum of positive squares in 3 ways, for example, as 854743696 + 368486416 = 29236^2 + 19196^2 .
It is not an unprimeable number, because it can be changed into a prime (1223230111) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 107687 + ... + 118502.
Almost surely, 21223230112 is an apocalyptic number.
It is an amenable number.
1223230112 is an abundant number, since it is smaller than the sum of its proper divisors (1384514398).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1223230112 is a wasteful number, since it uses less digits than its factorization.
1223230112 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 226225 (or 226204 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 17.
The square root of 1223230112 is about 34974.7067464475. The cubic root of 1223230112 is about 1069.4719238922.
Adding to 1223230112 its reverse (2110323221), we get a palindrome (3333553333).
The spelling of 1223230112 in words is "one billion, two hundred twenty-three million, two hundred thirty thousand, one hundred twelve".
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