Base | Representation |
---|---|
bin | 11010111000100100… |
… | …100100111110110110 |
3 | 2202111202020001202200 |
4 | 122320210210332312 |
5 | 433104244301212 |
6 | 21132215045330 |
7 | 2041223232054 |
oct | 327044447666 |
9 | 82452201680 |
10 | 28866400182 |
11 | 1127336a784 |
12 | 5717370846 |
13 | 295057ba89 |
14 | 157ba811d4 |
15 | b3e3576dc |
hex | 6b8924fb6 |
28866400182 has 48 divisors (see below), whose sum is σ = 63367759728. Its totient is φ = 9495639360.
The previous prime is 28866400159. The next prime is 28866400193. The reversal of 28866400182 is 28100466882.
28866400182 is a `hidden beast` number, since 2 + 8 + 8 + 66 + 400 + 182 = 666.
It is a congruent number.
It is an unprimeable number.
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 23 ways as a sum of consecutive naturals, for example, 1395588 + ... + 1416120.
It is an arithmetic number, because the mean of its divisors is an integer number (1320161661).
Almost surely, 228866400182 is an apocalyptic number.
28866400182 is an abundant number, since it is smaller than the sum of its proper divisors (34501359546).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28866400182 is a wasteful number, since it uses less digits than its factorization.
28866400182 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21565 (or 21562 counting only the distinct ones).
The product of its (nonzero) digits is 294912, while the sum is 45.
The spelling of 28866400182 in words is "twenty-eight billion, eight hundred sixty-six million, four hundred thousand, one hundred eighty-two".
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