Base | Representation |
---|---|
bin | 11101001011111… |
… | …100001010101010 |
3 | 1021010101202222122 |
4 | 131023330022222 |
5 | 2000323404130 |
6 | 120331151242 |
7 | 15064056155 |
oct | 3513741252 |
9 | 1233352878 |
10 | 489669290 |
11 | 231450870 |
12 | 117ba5522 |
13 | 7a5a8b56 |
14 | 49066c9c |
15 | 2cec72e5 |
hex | 1d2fc2aa |
489669290 has 32 divisors (see below), whose sum is σ = 973135296. Its totient is φ = 175912960.
The previous prime is 489669281. The next prime is 489669353. The reversal of 489669290 is 92966984.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17687 + ... + 35946.
It is an arithmetic number, because the mean of its divisors is an integer number (30410478).
Almost surely, 2489669290 is an apocalyptic number.
489669290 is a deficient number, since it is larger than the sum of its proper divisors (483466006).
489669290 is a wasteful number, since it uses less digits than its factorization.
489669290 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 53734.
The product of its (nonzero) digits is 1679616, while the sum is 53.
The square root of 489669290 is about 22128.4723828826. The cubic root of 489669290 is about 788.1961138050.
The spelling of 489669290 in words is "four hundred eighty-nine million, six hundred sixty-nine thousand, two hundred ninety".
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