Base | Representation |
---|---|
bin | 100101010010010011… |
… | …1110011000011111011 |
3 | 21122200022021212112001 |
4 | 1022210213303003323 |
5 | 2302441223320030 |
6 | 100441222001431 |
7 | 5533145612143 |
oct | 1124447630373 |
9 | 248608255461 |
10 | 80071307515 |
11 | 30a5a190511 |
12 | 13627876277 |
13 | 7720b40804 |
14 | 3c3841b923 |
15 | 21398a6cca |
hex | 12a49f30fb |
80071307515 has 4 divisors (see below), whose sum is σ = 96085569024. Its totient is φ = 64057046008.
The previous prime is 80071307483. The next prime is 80071307543. The reversal of 80071307515 is 51570317008.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 80071307515 - 25 = 80071307483 is a prime.
It is a super-2 number, since 2×800713075152 (a number of 23 digits) contains 22 as substring.
It is a Duffinian 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, 8007130747 + ... + 8007130756.
It is an arithmetic number, because the mean of its divisors is an integer number (24021392256).
Almost surely, 280071307515 is an apocalyptic number.
80071307515 is a deficient number, since it is larger than the sum of its proper divisors (16014261509).
80071307515 is a wasteful number, since it uses less digits than its factorization.
80071307515 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16014261508.
The product of its (nonzero) digits is 29400, while the sum is 37.
The spelling of 80071307515 in words is "eighty billion, seventy-one million, three hundred seven thousand, five hundred fifteen".
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