Base | Representation |
---|---|
bin | 100110000100101001… |
… | …0010000100101100000 |
3 | 21211001000011110201122 |
4 | 1030021102100211200 |
5 | 2314421100110341 |
6 | 101320551551412 |
7 | 5623043615456 |
oct | 1141122204540 |
9 | 254030143648 |
10 | 81760160096 |
11 | 3174652a44a |
12 | 13a1938b568 |
13 | 792c9b6174 |
14 | 3d588409d6 |
15 | 21d7ca794b |
hex | 1309490960 |
81760160096 has 24 divisors (see below), whose sum is σ = 164708697384. Its totient is φ = 39929379840.
The previous prime is 81760160081. The next prime is 81760160113. The reversal of 81760160096 is 69006106718.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29707985 + ... + 29710736.
It is an arithmetic number, because the mean of its divisors is an integer number (6862862391).
Almost surely, 281760160096 is an apocalyptic number.
81760160096 is a gapful number since it is divisible by the number (86) formed by its first and last digit.
It is an amenable number.
81760160096 is an abundant number, since it is smaller than the sum of its proper divisors (82948537288).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
81760160096 is a wasteful number, since it uses less digits than its factorization.
81760160096 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 59418774 (or 59418766 counting only the distinct ones).
The product of its (nonzero) digits is 108864, while the sum is 44.
The spelling of 81760160096 in words is "eighty-one billion, seven hundred sixty million, one hundred sixty thousand, ninety-six".
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