Base | Representation |
---|---|
bin | 1100101100001001101… |
… | …0001100010010111100 |
3 | 202211201111022000202220 |
4 | 3023002122030102330 |
5 | 12032441030321222 |
6 | 244052531045340 |
7 | 21515330342106 |
oct | 3130232142274 |
9 | 684644260686 |
10 | 218010010812 |
11 | 84503a70960 |
12 | 36303140850 |
13 | 177346461c9 |
14 | a7a1d96576 |
15 | 5a0e658b5c |
hex | 32c268c4bc |
218010010812 has 48 divisors (see below), whose sum is σ = 555041821824. Its totient is φ = 66050872000.
The previous prime is 218010010789. The next prime is 218010010847.
218010010812 is nontrivially palindromic in base 10.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 537487 + ... + 851417.
It is an arithmetic number, because the mean of its divisors is an integer number (11563371288).
Almost surely, 2218010010812 is an apocalyptic number.
218010010812 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
It is an amenable number.
218010010812 is an abundant number, since it is smaller than the sum of its proper divisors (337031811012).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
218010010812 is a wasteful number, since it uses less digits than its factorization.
218010010812 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 319210 (or 319208 counting only the distinct ones).
The product of its (nonzero) digits is 256, while the sum is 24.
It can be divided in two parts, 2180100 and 10812, that added together give a palindrome (2190912).
The spelling of 218010010812 in words is "two hundred eighteen billion, ten million, ten thousand, eight hundred twelve".
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