Base | Representation |
---|---|
bin | 1100001001010101101… |
… | …0001010011011111100 |
3 | 201221121020012001200112 |
4 | 3002111122022123330 |
5 | 11404321231001014 |
6 | 235505345045152 |
7 | 21034626014252 |
oct | 3022532123374 |
9 | 657536161615 |
10 | 208665093884 |
11 | 80549007515 |
12 | 345356267b8 |
13 | 168a559c570 |
14 | a156c385d2 |
15 | 566404973e |
hex | 309568a6fc |
208665093884 has 48 divisors (see below), whose sum is σ = 410503163616. Its totient is φ = 92167891200.
The previous prime is 208665093883. The next prime is 208665093887. The reversal of 208665093884 is 488390566802.
208665093884 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×2086650938842 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (208665093883) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 771602 + ... + 1006329.
It is an arithmetic number, because the mean of its divisors is an integer number (8552149242).
Almost surely, 2208665093884 is an apocalyptic number.
It is an amenable number.
208665093884 is a deficient number, since it is larger than the sum of its proper divisors (201838069732).
208665093884 is a wasteful number, since it uses less digits than its factorization.
208665093884 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1778046 (or 1778044 counting only the distinct ones).
The product of its (nonzero) digits is 19906560, while the sum is 59.
The spelling of 208665093884 in words is "two hundred eight billion, six hundred sixty-five million, ninety-three thousand, eight hundred eighty-four".
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