Base | Representation |
---|---|
bin | 101111111010110101… |
… | …1000010001000111000 |
3 | 100211121200200201200112 |
4 | 1133311223002020320 |
5 | 3141222410243210 |
6 | 115135131323452 |
7 | 10302051054155 |
oct | 1376553021070 |
9 | 324550621615 |
10 | 102905946680 |
11 | 3a7077a6929 |
12 | 17b3abb0588 |
13 | 991c883114 |
14 | 4da2d8322c |
15 | 2a24400d05 |
hex | 17f5ac2238 |
102905946680 has 64 divisors (see below), whose sum is σ = 242554608000. Its totient is φ = 39239875584.
The previous prime is 102905946581. The next prime is 102905946697. The reversal of 102905946680 is 86649509201.
It is a congruent number.
It is an unprimeable number.
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, 469829 + ... + 653108.
It is an arithmetic number, because the mean of its divisors is an integer number (3789915750).
Almost surely, 2102905946680 is an apocalyptic number.
102905946680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
102905946680 is an abundant number, since it is smaller than the sum of its proper divisors (139648661320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
102905946680 is a wasteful number, since it uses less digits than its factorization.
102905946680 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1123056 (or 1123052 counting only the distinct ones).
The product of its (nonzero) digits is 933120, while the sum is 50.
The spelling of 102905946680 in words is "one hundred two billion, nine hundred five million, nine hundred forty-six thousand, six hundred eighty".
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