Base | Representation |
---|---|
bin | 11101001100011… |
… | …000111010100101 |
3 | 1021010121202111221 |
4 | 131030120322211 |
5 | 2000341141140 |
6 | 120333500341 |
7 | 15065056366 |
oct | 3514307245 |
9 | 1233552457 |
10 | 489787045 |
11 | 231521290 |
12 | 1180416b1 |
13 | 7a61a627 |
14 | 49097b6d |
15 | 2ceec14a |
hex | 1d318ea5 |
489787045 has 16 divisors (see below), whose sum is σ = 653277312. Its totient is φ = 349485760.
The previous prime is 489787033. The next prime is 489787049. The reversal of 489787045 is 540787984.
It is not a de Polignac number, because 489787045 - 213 = 489778853 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 489786983 and 489787001.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (489787049) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81097 + ... + 86926.
It is an arithmetic number, because the mean of its divisors is an integer number (40829832).
Almost surely, 2489787045 is an apocalyptic number.
It is an amenable number.
489787045 is a deficient number, since it is larger than the sum of its proper divisors (163490267).
489787045 is a wasteful number, since it uses less digits than its factorization.
489787045 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 168092.
The product of its (nonzero) digits is 2257920, while the sum is 52.
The square root of 489787045 is about 22131.1329353018. The cubic root of 489787045 is about 788.2592901816.
The spelling of 489787045 in words is "four hundred eighty-nine million, seven hundred eighty-seven thousand, forty-five".
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