Base | Representation |
---|---|
bin | 100101010101001101… |
… | …0001100110011000000 |
3 | 21122221001222222212221 |
4 | 1022222122030303000 |
5 | 2303141102444313 |
6 | 100455011100424 |
7 | 5535435131542 |
oct | 1125232146300 |
9 | 248831888787 |
10 | 80168406208 |
11 | 30aa9a80170 |
12 | 136542a1714 |
13 | 7737ca9867 |
14 | 3c47295692 |
15 | 2143186c8d |
hex | 12aa68ccc0 |
80168406208 has 56 divisors (see below), whose sum is σ = 175743290880. Its totient is φ = 35978891520.
The previous prime is 80168406193. The next prime is 80168406209. The reversal of 80168406208 is 80260486108.
It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.
It is not an unprimeable number, because it can be changed into a prime (80168406209) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 665116 + ... + 776347.
Almost surely, 280168406208 is an apocalyptic number.
80168406208 is a gapful number since it is divisible by the number (88) formed by its first and last digit.
It is an amenable number.
80168406208 is an abundant number, since it is smaller than the sum of its proper divisors (95574884672).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80168406208 is a wasteful number, since it uses less digits than its factorization.
80168406208 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1441565 (or 1441555 counting only the distinct ones).
The product of its (nonzero) digits is 147456, while the sum is 43.
The spelling of 80168406208 in words is "eighty billion, one hundred sixty-eight million, four hundred six thousand, two hundred eight".
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