Base | Representation |
---|---|
bin | 1011111011111111011… |
… | …0011011101101110100 |
3 | 201121100112022012110122 |
4 | 2332333312123231310 |
5 | 11330002014233333 |
6 | 234114034511112 |
7 | 20550061525454 |
oct | 2767766335564 |
9 | 647315265418 |
10 | 205082180468 |
11 | 79a7a5a9650 |
12 | 338b5735498 |
13 | 164541c2759 |
14 | 9cd7055d64 |
15 | 5504710798 |
hex | 2fbfd9bb74 |
205082180468 has 48 divisors (see below), whose sum is σ = 415273098240. Its totient is φ = 87638709600.
The previous prime is 205082180467. The next prime is 205082180491. The reversal of 205082180468 is 864081280502.
It is a Harshad number since it is a multiple of its sum of digits (44).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (205082180467) 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, 826796 + ... + 1045827.
It is an arithmetic number, because the mean of its divisors is an integer number (8651522880).
Almost surely, 2205082180468 is an apocalyptic number.
It is an amenable number.
205082180468 is an abundant number, since it is smaller than the sum of its proper divisors (210190917772).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
205082180468 is a wasteful number, since it uses less digits than its factorization.
205082180468 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1872788 (or 1872786 counting only the distinct ones).
The product of its (nonzero) digits is 245760, while the sum is 44.
The spelling of 205082180468 in words is "two hundred five billion, eighty-two million, one hundred eighty thousand, four hundred sixty-eight".
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