Base | Representation |
---|---|
bin | 100101011001101100… |
… | …0001101111000011100 |
3 | 21200022120010220220210 |
4 | 1022303120031320130 |
5 | 2303443113200213 |
6 | 100521544212420 |
7 | 5542243140501 |
oct | 1126330157034 |
9 | 250276126823 |
10 | 80318881308 |
11 | 31076a07356 |
12 | 1369676a110 |
13 | 7760213a93 |
14 | 3c5d2654a8 |
15 | 21514ac0c3 |
hex | 12b360de1c |
80318881308 has 12 divisors (see below), whose sum is σ = 187410723080. Its totient is φ = 26772960432.
The previous prime is 80318881301. The next prime is 80318881319.
80318881308 is nontrivially palindromic in base 10.
It is a tau number, because it is divible by the number of its divisors (12).
It is a super-2 number, since 2×803188813082 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80318881301) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3346620043 + ... + 3346620066.
Almost surely, 280318881308 is an apocalyptic number.
It is an amenable number.
80318881308 is an abundant number, since it is smaller than the sum of its proper divisors (107091841772).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80318881308 is a wasteful number, since it uses less digits than its factorization.
80318881308 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6693240116 (or 6693240114 counting only the distinct ones).
The product of its (nonzero) digits is 294912, while the sum is 48.
The spelling of 80318881308 in words is "eighty billion, three hundred eighteen million, eight hundred eighty-one thousand, three hundred eight".
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