Base | Representation |
---|---|
bin | 11101001010000… |
… | …010000111110011 |
3 | 1021002110101021000 |
4 | 131022002013303 |
5 | 2000211410040 |
6 | 120312333043 |
7 | 15056604561 |
oct | 3512020763 |
9 | 1232411230 |
10 | 489169395 |
11 | 23113a230 |
12 | 1179a4183 |
13 | 7a462460 |
14 | 48d76a31 |
15 | 2ce29130 |
hex | 1d2821f3 |
489169395 has 64 divisors (see below), whose sum is σ = 1021708800. Its totient is φ = 218920320.
The previous prime is 489169349. The next prime is 489169399. The reversal of 489169395 is 593961984.
It is not a de Polignac number, because 489169395 - 210 = 489168371 is a prime.
It is not an unprimeable number, because it can be changed into a prime (489169399) 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, 6636 + ... + 31974.
It is an arithmetic number, because the mean of its divisors is an integer number (15964200).
Almost surely, 2489169395 is an apocalyptic number.
489169395 is a gapful number since it is divisible by the number (45) formed by its first and last digit.
489169395 is an abundant number, since it is smaller than the sum of its proper divisors (532539405).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
489169395 is a wasteful number, since it uses less digits than its factorization.
489169395 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25377 (or 25371 counting only the distinct ones).
The product of its digits is 2099520, while the sum is 54.
The square root of 489169395 is about 22117.1742091977. The cubic root of 489169395 is about 787.9278038377.
It can be divided in two parts, 48916 and 9395, that added together give a triangular number (58311 = T341).
The spelling of 489169395 in words is "four hundred eighty-nine million, one hundred sixty-nine thousand, three hundred ninety-five".
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