Base | Representation |
---|---|
bin | 1001100011001… |
… | …10000110100100 |
3 | 12120202000020121 |
4 | 10301212012210 |
5 | 131002004423 |
6 | 11541011324 |
7 | 1661631550 |
oct | 461460644 |
9 | 176660217 |
10 | 80109988 |
11 | 41246902 |
12 | 229b3b44 |
13 | 1379b47a |
14 | a8d4860 |
15 | 707645d |
hex | 4c661a4 |
80109988 has 24 divisors (see below), whose sum is σ = 160664000. Its totient is φ = 34237728.
The previous prime is 80109979. The next prime is 80110007. The reversal of 80109988 is 88990108.
It is a super-2 number, since 2×801099882 = 12835220354720288, which contains 22 as substring.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6838 + ... + 14386.
Almost surely, 280109988 is an apocalyptic number.
It is an amenable number.
80109988 is an abundant number, since it is smaller than the sum of its proper divisors (80554012).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80109988 is a wasteful number, since it uses less digits than its factorization.
80109988 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7939 (or 7937 counting only the distinct ones).
The product of its (nonzero) digits is 41472, while the sum is 43.
The square root of 80109988 is about 8950.4183142465. The cubic root of 80109988 is about 431.0843158812.
The spelling of 80109988 in words is "eighty million, one hundred nine thousand, nine hundred eighty-eight".
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