Base | Representation |
---|---|
bin | 100101011111100000… |
… | …1110101111000000101 |
3 | 21200211011221101010200 |
4 | 1022333001311320011 |
5 | 2304343132424110 |
6 | 100553205441113 |
7 | 5550135422100 |
oct | 1127701657005 |
9 | 250734841120 |
10 | 80514342405 |
11 | 3116727a152 |
12 | 13730110199 |
13 | 779186c133 |
14 | 3c7b1c5737 |
15 | 216371b6c0 |
hex | 12bf075e05 |
80514342405 has 144 divisors (see below), whose sum is σ = 166202150400. Its totient is φ = 35935570944.
The previous prime is 80514342367. The next prime is 80514342421. The reversal of 80514342405 is 50424341508.
It is a happy number.
It is not a de Polignac number, because 80514342405 - 26 = 80514342341 is a prime.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 80514342405.
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 143 ways as a sum of consecutive naturals, for example, 62076717 + ... + 62078013.
It is an arithmetic number, because the mean of its divisors is an integer number (1154181600).
Almost surely, 280514342405 is an apocalyptic number.
It is an amenable number.
80514342405 is an abundant number, since it is smaller than the sum of its proper divisors (85687807995).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80514342405 is a wasteful number, since it uses less digits than its factorization.
80514342405 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1968 (or 1958 counting only the distinct ones).
The product of its (nonzero) digits is 76800, while the sum is 36.
The spelling of 80514342405 in words is "eighty billion, five hundred fourteen million, three hundred forty-two thousand, four hundred five".
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