Base | Representation |
---|---|
bin | 1111000011000100011101… |
… | …0111110101011001100001 |
3 | 2011120201121011122102120121 |
4 | 3300301013113311121201 |
5 | 4132040000313021221 |
6 | 55104505044240241 |
7 | 3325236501623323 |
oct | 360610727653141 |
9 | 64521534572517 |
10 | 16545411454561 |
11 | 52a9962478900 |
12 | 1a327409a0081 |
13 | 9302c1869452 |
14 | 412b332b7613 |
15 | 1da5b6624a41 |
hex | f0c475f5661 |
16545411454561 has 6 divisors (see below), whose sum is σ = 18186278706386. Its totient is φ = 15041283140400.
The previous prime is 16545411454547. The next prime is 16545411454589.
16545411454561 is nontrivially palindromic in base 10.
It can be written as a sum of positive squares in only one way, i.e., 13652286010000 + 2893125444561 = 3694900^2 + 1700919^2 .
It is a de Polignac number, because none of the positive numbers 2k-16545411454561 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 16545411454499 and 16545411454508.
It is not an unprimeable number, because it can be changed into a prime (16545411454511) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68369468700 + ... + 68369468941.
Almost surely, 216545411454561 is an apocalyptic number.
16545411454561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
16545411454561 is a deficient number, since it is larger than the sum of its proper divisors (1640867251825).
16545411454561 is a wasteful number, since it uses less digits than its factorization.
16545411454561 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 136738937663 (or 136738937652 counting only the distinct ones).
The product of its digits is 5760000, while the sum is 52.
The spelling of 16545411454561 in words is "sixteen trillion, five hundred forty-five billion, four hundred eleven million, four hundred fifty-four thousand, five hundred sixty-one".
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