Base | Representation |
---|---|
bin | 100101010010011011… |
… | …0010000001111111001 |
3 | 21122200120102101211100 |
4 | 1022210312100033321 |
5 | 2302443211101311 |
6 | 100441435122013 |
7 | 5533223044350 |
oct | 1124466201771 |
9 | 248616371740 |
10 | 80075097081 |
11 | 30a61339691 |
12 | 13628ba3309 |
13 | 7721869665 |
14 | 3c38b26997 |
15 | 2139da4a56 |
hex | 12a4d903f9 |
80075097081 has 48 divisors (see below), whose sum is σ = 137078566144. Its totient is φ = 44088147072.
The previous prime is 80075097079. The next prime is 80075097107. The reversal of 80075097081 is 18079057008.
It is not a de Polignac number, because 80075097081 - 21 = 80075097079 is a prime.
It is a super-2 number, since 2×800750970812 (a number of 23 digits) contains 22 as substring.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (80075097061) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 73335 + ... + 406851.
Almost surely, 280075097081 is an apocalyptic number.
It is an amenable number.
80075097081 is a deficient number, since it is larger than the sum of its proper divisors (57003469063).
80075097081 is a wasteful number, since it uses less digits than its factorization.
80075097081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 333670 (or 333667 counting only the distinct ones).
The product of its (nonzero) digits is 141120, while the sum is 45.
The spelling of 80075097081 in words is "eighty billion, seventy-five million, ninety-seven thousand, eighty-one".
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