Base | Representation |
---|---|
bin | 10010010000001111100100… |
… | …101100011000010001011100 |
3 | 101112020210110211201022002000 |
4 | 102100033210230120101130 |
5 | 41010311113031143130 |
6 | 442424340434202300 |
7 | 22624054524412122 |
oct | 2220174454302134 |
9 | 345223424638060 |
10 | 80281070568540 |
11 | 2364201345a406 |
12 | 9007014123390 |
13 | 35a461b0308ba |
14 | 15b78a5a8b912 |
15 | 94346534c260 |
hex | 4903e4b1845c |
80281070568540 has 48 divisors (see below), whose sum is σ = 249763330659360. Its totient is φ = 21408285484800.
The previous prime is 80281070568511. The next prime is 80281070568551. The reversal of 80281070568540 is 4586507018208.
80281070568540 is a `hidden beast` number, since 8 + 0 + 2 + 8 + 1 + 0 + 70 + 568 + 5 + 4 + 0 = 666.
It is a Harshad number since it is a multiple of its sum of digits (54).
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 15 ways as a sum of consecutive naturals, for example, 74334324061 + ... + 74334325140.
It is an arithmetic number, because the mean of its divisors is an integer number (5203402722070).
Almost surely, 280281070568540 is an apocalyptic number.
It is an amenable number.
80281070568540 is an abundant number, since it is smaller than the sum of its proper divisors (169482260090820).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80281070568540 is a wasteful number, since it uses less digits than its factorization.
80281070568540 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 148668649219 (or 148668649211 counting only the distinct ones).
The product of its (nonzero) digits is 4300800, while the sum is 54.
The spelling of 80281070568540 in words is "eighty trillion, two hundred eighty-one billion, seventy million, five hundred sixty-eight thousand, five hundred forty".
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