Base | Representation |
---|---|
bin | 1011000011100010000110… |
… | …0011101100010000001001 |
3 | 1121001001000011220120212200 |
4 | 2300320201203230100021 |
5 | 3043123044013431410 |
6 | 41504024354230413 |
7 | 2363123113041645 |
oct | 260704143542011 |
9 | 47031004816780 |
10 | 12155320452105 |
11 | 3967051563406 |
12 | 1443948285409 |
13 | 6a231b30984c |
14 | 30046bc09c25 |
15 | 1612c3b553c0 |
hex | b0e218ec409 |
12155320452105 has 48 divisors (see below), whose sum is σ = 21494485459200. Its totient is φ = 6352990009344.
The previous prime is 12155320452101. The next prime is 12155320452113. The reversal of 12155320452105 is 50125402355121.
12155320452105 is a `hidden beast` number, since 1 + 2 + 15 + 532 + 0 + 4 + 5 + 2 + 105 = 666.
It is not a de Polignac number, because 12155320452105 - 22 = 12155320452101 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 12155320452105.
It is not an unprimeable number, because it can be changed into a prime (12155320452101) by changing a digit.
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 47 ways as a sum of consecutive naturals, for example, 9862705 + ... + 11026494.
It is an arithmetic number, because the mean of its divisors is an integer number (447801780400).
Almost surely, 212155320452105 is an apocalyptic number.
12155320452105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
12155320452105 is a deficient number, since it is larger than the sum of its proper divisors (9339165007095).
12155320452105 is a wasteful number, since it uses less digits than its factorization.
12155320452105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20889470 (or 20889467 counting only the distinct ones).
The product of its (nonzero) digits is 60000, while the sum is 36.
The spelling of 12155320452105 in words is "twelve trillion, one hundred fifty-five billion, three hundred twenty million, four hundred fifty-two thousand, one hundred five".
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