Base | Representation |
---|---|
bin | 100101101010001011… |
… | …0011000101001110111 |
3 | 21201202010000202201010 |
4 | 1023110112120221313 |
5 | 2311111221034041 |
6 | 101052504403303 |
7 | 5562041035206 |
oct | 1132426305167 |
9 | 251663022633 |
10 | 80872049271 |
11 | 31330188662 |
12 | 1380ba76533 |
13 | 781a9c31c0 |
14 | 3cb28db23d |
15 | 2184d28a16 |
hex | 12d4598a77 |
80872049271 has 16 divisors (see below), whose sum is σ = 116187491840. Its totient is φ = 49740190560.
The previous prime is 80872049267. The next prime is 80872049303. The reversal of 80872049271 is 17294027808.
It is not a de Polignac number, because 80872049271 - 22 = 80872049267 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 80872049271.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80872049221) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 494851 + ... + 637668.
It is an arithmetic number, because the mean of its divisors is an integer number (7261718240).
Almost surely, 280872049271 is an apocalyptic number.
80872049271 is a deficient number, since it is larger than the sum of its proper divisors (35315442569).
80872049271 is a wasteful number, since it uses less digits than its factorization.
80872049271 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1134366.
The product of its (nonzero) digits is 451584, while the sum is 48.
The spelling of 80872049271 in words is "eighty billion, eight hundred seventy-two million, forty-nine thousand, two hundred seventy-one".
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