Base | Representation |
---|---|
bin | 11101000011001… |
… | …101101101010101 |
3 | 1020222002120012110 |
4 | 131003031231111 |
5 | 1444232204340 |
6 | 120210141233 |
7 | 15035451216 |
oct | 3503155525 |
9 | 1228076173 |
10 | 487381845 |
11 | 230129215 |
12 | 117281819 |
13 | 79c87932 |
14 | 48a2d40d |
15 | 2cbc4680 |
hex | 1d0cdb55 |
487381845 has 64 divisors (see below), whose sum is σ = 847872000. Its totient is φ = 238360320.
The previous prime is 487381819. The next prime is 487381849. The reversal of 487381845 is 548183784.
It is not a de Polignac number, because 487381845 - 25 = 487381813 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 487381794 and 487381803.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (487381849) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2128191 + ... + 2128419.
It is an arithmetic number, because the mean of its divisors is an integer number (13248000).
Almost surely, 2487381845 is an apocalyptic number.
It is an amenable number.
487381845 is a deficient number, since it is larger than the sum of its proper divisors (360490155).
487381845 is a wasteful number, since it uses less digits than its factorization.
487381845 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 490.
The product of its digits is 860160, while the sum is 48.
The square root of 487381845 is about 22076.7263198147. The cubic root of 487381845 is about 786.9668691892.
The spelling of 487381845 in words is "four hundred eighty-seven million, three hundred eighty-one thousand, eight hundred forty-five".
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