Base | Representation |
---|---|
bin | 100101101011110101… |
… | …0100111000001111101 |
3 | 21201212222201020101221 |
4 | 1023113222213001331 |
5 | 2311214441321220 |
6 | 101102213033341 |
7 | 5563314644563 |
oct | 1132752470175 |
9 | 251788636357 |
10 | 80927682685 |
11 | 31359626893 |
12 | 13826625851 |
13 | 78293a1795 |
14 | 3cba05da33 |
15 | 2189b679aa |
hex | 12d7aa707d |
80927682685 has 8 divisors (see below), whose sum is σ = 98074736856. Its totient is φ = 64101134400.
The previous prime is 80927682673. The next prime is 80927682727. The reversal of 80927682685 is 58628672908.
It can be written as a sum of positive squares in 4 ways, for example, as 42484629924 + 38443052761 = 206118^2 + 196069^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 80927682685 - 211 = 80927680637 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80125914 + ... + 80126923.
It is an arithmetic number, because the mean of its divisors is an integer number (12259342107).
Almost surely, 280927682685 is an apocalyptic number.
It is an amenable number.
80927682685 is a deficient number, since it is larger than the sum of its proper divisors (17147054171).
80927682685 is a wasteful number, since it uses less digits than its factorization.
80927682685 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 160252943.
The product of its (nonzero) digits is 23224320, while the sum is 61.
The spelling of 80927682685 in words is "eighty billion, nine hundred twenty-seven million, six hundred eighty-two thousand, six hundred eighty-five".
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