Base | Representation |
---|---|
bin | 1001111010110… |
… | …10100101110000 |
3 | 12210120102200112 |
4 | 10331122211300 |
5 | 132300133220 |
6 | 12131240452 |
7 | 2030155361 |
oct | 475324560 |
9 | 183512615 |
10 | 83208560 |
11 | 42a72906 |
12 | 23a49128 |
13 | 14314946 |
14 | b09db68 |
15 | 74895c5 |
hex | 4f5a970 |
83208560 has 40 divisors (see below), whose sum is σ = 198695616. Its totient is φ = 32382720.
The previous prime is 83208553. The next prime is 83208589. The reversal of 83208560 is 6580238.
It is a tau number, because it is divible by the number of its divisors (40).
It is a congruent number.
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, 11096 + ... + 17015.
Almost surely, 283208560 is an apocalyptic number.
83208560 is a gapful number since it is divisible by the number (80) formed by its first and last digit.
It is an amenable number.
83208560 is an abundant number, since it is smaller than the sum of its proper divisors (115487056).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
83208560 is a wasteful number, since it uses less digits than its factorization.
83208560 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28161 (or 28155 counting only the distinct ones).
The product of its (nonzero) digits is 11520, while the sum is 32.
The square root of 83208560 is about 9121.8726147650. The cubic root of 83208560 is about 436.5721243826.
Adding to 83208560 its reverse (6580238), we get a palindrome (89788798).
The spelling of 83208560 in words is "eighty-three million, two hundred eight thousand, five hundred sixty".
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