Base | Representation |
---|---|
bin | 100101010010100011… |
… | …0001111000011111001 |
3 | 21122200212022020122210 |
4 | 1022211012033003321 |
5 | 2303000244132041 |
6 | 100442105005333 |
7 | 5533303463433 |
oct | 1124506170371 |
9 | 248625266583 |
10 | 80079286521 |
11 | 30a63740233 |
12 | 1362a483849 |
13 | 77226a5510 |
14 | 3c394d7653 |
15 | 213a431016 |
hex | 12a518f0f9 |
80079286521 has 16 divisors (see below), whose sum is σ = 118694858240. Its totient is φ = 47689896960.
The previous prime is 80079286481. The next prime is 80079286531. The reversal of 80079286521 is 12568297008.
It is not a de Polignac number, because 80079286521 - 210 = 80079285497 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (80079286531) 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, 33116776 + ... + 33119193.
It is an arithmetic number, because the mean of its divisors is an integer number (7418428640).
Almost surely, 280079286521 is an apocalyptic number.
It is an amenable number.
80079286521 is a deficient number, since it is larger than the sum of its proper divisors (38615571719).
80079286521 is a wasteful number, since it uses less digits than its factorization.
80079286521 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 66236016.
The product of its (nonzero) digits is 483840, while the sum is 48.
The spelling of 80079286521 in words is "eighty billion, seventy-nine million, two hundred eighty-six thousand, five hundred twenty-one".
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