Base | Representation |
---|---|
bin | 100101100110110010… |
… | …0110110101111010101 |
3 | 21201110012011212222010 |
4 | 1023031210312233111 |
5 | 2310343122331010 |
6 | 101033324454433 |
7 | 5556161043111 |
oct | 1131544665725 |
9 | 251405155863 |
10 | 80758402005 |
11 | 312820157a6 |
12 | 137999aa419 |
13 | 78002b19b8 |
14 | 3ca1796741 |
15 | 2179d7a620 |
hex | 12cd936bd5 |
80758402005 has 16 divisors (see below), whose sum is σ = 129216982464. Its totient is φ = 43069968000.
The previous prime is 80758402001. The next prime is 80758402013. The reversal of 80758402005 is 50020485708.
It is not a de Polignac number, because 80758402005 - 22 = 80758402001 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80758402001) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 956505 + ... + 1037505.
It is an arithmetic number, because the mean of its divisors is an integer number (8076061404).
Almost surely, 280758402005 is an apocalyptic number.
It is an amenable number.
80758402005 is a deficient number, since it is larger than the sum of its proper divisors (48458580459).
80758402005 is a wasteful number, since it uses less digits than its factorization.
80758402005 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 147476.
The product of its (nonzero) digits is 89600, while the sum is 39.
The spelling of 80758402005 in words is "eighty billion, seven hundred fifty-eight million, four hundred two thousand, five".
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