Base | Representation |
---|---|
bin | 10001000010000011… |
… | …001110111000110110 |
3 | 1202012112010022101102 |
4 | 101002003032320312 |
5 | 244423212402404 |
6 | 12222411330102 |
7 | 1215123354506 |
oct | 210203167066 |
9 | 52175108342 |
10 | 18288012854 |
11 | 7835119811 |
12 | 3664750932 |
13 | 1955ac21a7 |
14 | c56b9da06 |
15 | 7207ea71e |
hex | 4420cee36 |
18288012854 has 32 divisors (see below), whose sum is σ = 29804495616. Its totient is φ = 8381998080.
The previous prime is 18288012833. The next prime is 18288012863. The reversal of 18288012854 is 45821088281.
It is a junction number, because it is equal to n+sod(n) for n = 18288012799 and 18288012808.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 835352 + ... + 856964.
It is an arithmetic number, because the mean of its divisors is an integer number (931390488).
Almost surely, 218288012854 is an apocalyptic number.
18288012854 is a deficient number, since it is larger than the sum of its proper divisors (11516482762).
18288012854 is a wasteful number, since it uses less digits than its factorization.
18288012854 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22280.
The product of its (nonzero) digits is 327680, while the sum is 47.
The spelling of 18288012854 in words is "eighteen billion, two hundred eighty-eight million, twelve thousand, eight hundred fifty-four".
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