Base | Representation |
---|---|
bin | 1001100101110… |
… | …10011011111100 |
3 | 12121101120002101 |
4 | 10302322123330 |
5 | 131044033140 |
6 | 11552234444 |
7 | 1664600623 |
oct | 462723374 |
9 | 177346071 |
10 | 80455420 |
11 | 41462391 |
12 | 22b3ba24 |
13 | 1388c776 |
14 | a9846ba |
15 | 70e399a |
hex | 4cba6fc |
80455420 has 24 divisors (see below), whose sum is σ = 169457904. Its totient is φ = 32086656.
The previous prime is 80455411. The next prime is 80455421. The reversal of 80455420 is 2455408.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80455421) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1144 + ... + 12736.
It is an arithmetic number, because the mean of its divisors is an integer number (7060746).
Almost surely, 280455420 is an apocalyptic number.
It is an amenable number.
80455420 is an abundant number, since it is smaller than the sum of its proper divisors (89002484).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80455420 is a wasteful number, since it uses less digits than its factorization.
80455420 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11949 (or 11947 counting only the distinct ones).
The product of its (nonzero) digits is 6400, while the sum is 28.
The square root of 80455420 is about 8969.6945321455. The cubic root of 80455420 is about 431.7030352195.
The spelling of 80455420 in words is "eighty million, four hundred fifty-five thousand, four hundred twenty".
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