Base | Representation |
---|---|
bin | 1001100101011… |
… | …10110010000000 |
3 | 12121022010121020 |
4 | 10302232302000 |
5 | 131041021210 |
6 | 11551225440 |
7 | 1664311503 |
oct | 462566200 |
9 | 177263536 |
10 | 80407680 |
11 | 4142a531 |
12 | 22b18280 |
13 | 13873b12 |
14 | a97113a |
15 | 70d4770 |
hex | 4caec80 |
80407680 has 64 divisors (see below), whose sum is σ = 256305600. Its totient is φ = 21441536.
The previous prime is 80407643. The next prime is 80407693. The reversal of 80407680 is 8670408.
It is a tau number, because it is divible by the number of its divisors (64).
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, 19020 + ... + 22859.
It is an arithmetic number, because the mean of its divisors is an integer number (4004775).
Almost surely, 280407680 is an apocalyptic number.
80407680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.
It is an amenable number.
80407680 is an abundant number, since it is smaller than the sum of its proper divisors (175897920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80407680 is a wasteful number, since it uses less digits than its factorization.
80407680 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 41901 (or 41889 counting only the distinct ones).
The product of its (nonzero) digits is 10752, while the sum is 33.
The square root of 80407680 is about 8967.0329541047. The cubic root of 80407680 is about 431.6176314824.
The spelling of 80407680 in words is "eighty million, four hundred seven thousand, six hundred eighty".
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