Base | Representation |
---|---|
bin | 100101101010111110… |
… | …0011110001111100111 |
3 | 21201210222101101200220 |
4 | 1023111330132033213 |
5 | 2311140043421410 |
6 | 101055302135423 |
7 | 5562514355262 |
oct | 1132574361747 |
9 | 251728341626 |
10 | 80898810855 |
11 | 313442a6a75 |
12 | 13818a21573 |
13 | 7823403165 |
14 | 3cb62a5cd9 |
15 | 2187363070 |
hex | 12d5f1e3e7 |
80898810855 has 8 divisors (see below), whose sum is σ = 129438097392. Its totient is φ = 43146032448.
The previous prime is 80898810851. The next prime is 80898810887. The reversal of 80898810855 is 55801889808.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 80898810855 - 22 = 80898810851 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80898810851) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2696627014 + ... + 2696627043.
It is an arithmetic number, because the mean of its divisors is an integer number (16179762174).
Almost surely, 280898810855 is an apocalyptic number.
80898810855 is a deficient number, since it is larger than the sum of its proper divisors (48539286537).
80898810855 is a wasteful number, since it uses less digits than its factorization.
80898810855 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5393254065.
The product of its (nonzero) digits is 7372800, while the sum is 60.
The spelling of 80898810855 in words is "eighty billion, eight hundred ninety-eight million, eight hundred ten thousand, eight hundred fifty-five".
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