Base | Representation |
---|---|
bin | 1110001100111011110… |
… | …00011101100010010000 |
3 | 1201122120011200222011220 |
4 | 13012131320131202100 |
5 | 30443340403102100 |
6 | 1012101443405040 |
7 | 50153413440042 |
oct | 7063570354220 |
9 | 1648504628156 |
10 | 487980128400 |
11 | 178a51074016 |
12 | 7a6a7683780 |
13 | 37029b4940b |
14 | 19892b11a92 |
15 | ca60789aa0 |
hex | 719de1d890 |
487980128400 has 60 divisors (see below), whose sum is σ = 1563163015152. Its totient is φ = 130128033920.
The previous prime is 487980128371. The next prime is 487980128437. The reversal of 487980128400 is 4821089784.
It is a tau number, because it is divible by the number of its divisors (60).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203323854 + ... + 203326253.
Almost surely, 2487980128400 is an apocalyptic number.
487980128400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.
It is an amenable number.
487980128400 is an abundant number, since it is smaller than the sum of its proper divisors (1075182886752).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
487980128400 is a wasteful number, since it uses less digits than its factorization.
487980128400 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 406650128 (or 406650117 counting only the distinct ones).
The product of its (nonzero) digits is 1032192, while the sum is 51.
The spelling of 487980128400 in words is "four hundred eighty-seven billion, nine hundred eighty million, one hundred twenty-eight thousand, four hundred".
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