Base | Representation |
---|---|
bin | 100101010100011111… |
… | …0001100010111101111 |
3 | 21122212101121121211220 |
4 | 1022220332030113233 |
5 | 2303113414142330 |
6 | 100452350114423 |
7 | 5535023126016 |
oct | 1125076142757 |
9 | 248771547756 |
10 | 80144287215 |
11 | 30a973a7213 |
12 | 136481aba13 |
13 | 7732cb3675 |
14 | 3c43db7a7d |
15 | 2140ec0710 |
hex | 12a8f8c5ef |
80144287215 has 16 divisors (see below), whose sum is σ = 128265244800. Its totient is φ = 42732158112.
The previous prime is 80144287213. The next prime is 80144287217. The reversal of 80144287215 is 51278244108.
It is an interprime number because it is at equal distance from previous prime (80144287213) and next prime (80144287217).
It is not a de Polignac number, because 80144287215 - 21 = 80144287213 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80144287213) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 658405 + ... + 770574.
It is an arithmetic number, because the mean of its divisors is an integer number (8016577800).
Almost surely, 280144287215 is an apocalyptic number.
80144287215 is a deficient number, since it is larger than the sum of its proper divisors (48120957585).
80144287215 is a wasteful number, since it uses less digits than its factorization.
80144287215 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1432726.
The product of its (nonzero) digits is 143360, while the sum is 42.
The spelling of 80144287215 in words is "eighty billion, one hundred forty-four million, two hundred eighty-seven thousand, two hundred fifteen".
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