Base | Representation |
---|---|
bin | 11010100110010… |
… | …01000001001000 |
3 | 120112211202010112 |
4 | 31103021001020 |
5 | 424104341410 |
6 | 34050133452 |
7 | 5346333641 |
oct | 1523110110 |
9 | 515752115 |
10 | 223121480 |
11 | 104a4551a |
12 | 62881288 |
13 | 372c145a |
14 | 218c06c8 |
15 | 148c5105 |
hex | d4c9048 |
223121480 has 32 divisors (see below), whose sum is σ = 510537600. Its totient is φ = 87734976.
The previous prime is 223121461. The next prime is 223121491. The reversal of 223121480 is 84121322.
It is a happy number.
It is a super-3 number, since 3×2231214803 (a number of 26 digits) contains 333 as substring.
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, 44912 + ... + 49631.
It is an arithmetic number, because the mean of its divisors is an integer number (15954300).
Almost surely, 2223121480 is an apocalyptic number.
223121480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
223121480 is an abundant number, since it is smaller than the sum of its proper divisors (287416120).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
223121480 is a wasteful number, since it uses less digits than its factorization.
223121480 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 94613 (or 94609 counting only the distinct ones).
The product of its (nonzero) digits is 768, while the sum is 23.
The square root of 223121480 is about 14937.2514205258. The cubic root of 223121480 is about 606.5227945807.
The spelling of 223121480 in words is "two hundred twenty-three million, one hundred twenty-one thousand, four hundred eighty".
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