Base | Representation |
---|---|
bin | 100101101001011000… |
… | …0010111010001100000 |
3 | 21201200020201000100220 |
4 | 1023102300113101200 |
5 | 2311032344224203 |
6 | 101050111243040 |
7 | 5561264516313 |
oct | 1132260272140 |
9 | 251606630326 |
10 | 80845304928 |
11 | 313170811a3 |
12 | 13802b19480 |
13 | 78152bb04b |
14 | 3cad13897a |
15 | 21827e4653 |
hex | 12d2c17460 |
80845304928 has 48 divisors (see below), whose sum is σ = 212394185136. Its totient is φ = 26926179840.
The previous prime is 80845304927. The next prime is 80845304929. The reversal of 80845304928 is 82940354808.
It is an interprime number because it is at equal distance from previous prime (80845304927) and next prime (80845304929).
It is a tau number, because it is divible by the number of its divisors (48).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80845304921) 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, 230683 + ... + 463578.
It is an arithmetic number, because the mean of its divisors is an integer number (4424878857).
Almost surely, 280845304928 is an apocalyptic number.
It is an amenable number.
80845304928 is an abundant number, since it is smaller than the sum of its proper divisors (131548880208).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80845304928 is a wasteful number, since it uses less digits than its factorization.
80845304928 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 695487 (or 695479 counting only the distinct ones).
The product of its (nonzero) digits is 2211840, while the sum is 51.
The spelling of 80845304928 in words is "eighty billion, eight hundred forty-five million, three hundred four thousand, nine hundred twenty-eight".
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