Base | Representation |
---|---|
bin | 10001000101001110… |
… | …111001100111001111 |
3 | 1202100020120211000110 |
4 | 101011032321213033 |
5 | 300030344344322 |
6 | 12231555531103 |
7 | 1216342232250 |
oct | 210516714717 |
9 | 52306524013 |
10 | 18341403087 |
11 | 7862275677 |
12 | 367a5b9a93 |
13 | 1963b96747 |
14 | c5dcdab27 |
15 | 725344c0c |
hex | 4453b99cf |
18341403087 has 32 divisors (see below), whose sum is σ = 28234128384. Its totient is φ = 10374336000.
The previous prime is 18341403007. The next prime is 18341403103. The reversal of 18341403087 is 78030414381.
It is not a de Polignac number, because 18341403087 - 216 = 18341337551 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18341403007) 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 31 ways as a sum of consecutive naturals, for example, 834337 + ... + 856037.
It is an arithmetic number, because the mean of its divisors is an integer number (882316512).
Almost surely, 218341403087 is an apocalyptic number.
18341403087 is a deficient number, since it is larger than the sum of its proper divisors (9892725297).
18341403087 is a wasteful number, since it uses less digits than its factorization.
18341403087 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22119.
The product of its (nonzero) digits is 64512, while the sum is 39.
The spelling of 18341403087 in words is "eighteen billion, three hundred forty-one million, four hundred three thousand, eighty-seven".
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