Base | Representation |
---|---|
bin | 11100101101011… |
… | …000110101000111 |
3 | 1020120022212121211 |
4 | 130231120311013 |
5 | 1441301111411 |
6 | 115443352251 |
7 | 14636021143 |
oct | 3455306507 |
9 | 1216285554 |
10 | 481660231 |
11 | 227980508 |
12 | 115382687 |
13 | 78a33570 |
14 | 47d80223 |
15 | 2c444221 |
hex | 1cb58d47 |
481660231 has 16 divisors (see below), whose sum is σ = 525672000. Its totient is φ = 438686208.
The previous prime is 481660229. The next prime is 481660259. The reversal of 481660231 is 132066184.
It is a happy number.
It is a cyclic number.
It is not a de Polignac number, because 481660231 - 21 = 481660229 is a prime.
It is a super-2 number, since 2×4816602312 = 463993156253946722, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 481660193 and 481660202.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (481660211) 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, 322735 + ... + 324223.
It is an arithmetic number, because the mean of its divisors is an integer number (32854500).
Almost surely, 2481660231 is an apocalyptic number.
481660231 is a deficient number, since it is larger than the sum of its proper divisors (44011769).
481660231 is a wasteful number, since it uses less digits than its factorization.
481660231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1818.
The product of its (nonzero) digits is 6912, while the sum is 31.
The square root of 481660231 is about 21946.7590090200. The cubic root of 481660231 is about 783.8752095346.
The spelling of 481660231 in words is "four hundred eighty-one million, six hundred sixty thousand, two hundred thirty-one".
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