Base | Representation |
---|---|
bin | 10001010000111… |
… | …101110011011010 |
3 | 202012001020222200 |
4 | 101100331303122 |
5 | 1043123110442 |
6 | 44424231030 |
7 | 10115033103 |
oct | 2120756332 |
9 | 665036880 |
10 | 289660122 |
11 | 139561a34 |
12 | 8100b476 |
13 | 4801a62b |
14 | 2a6813aa |
15 | 1a66a34c |
hex | 1143dcda |
289660122 has 48 divisors (see below), whose sum is σ = 637180128. Its totient is φ = 95090400.
The previous prime is 289660109. The next prime is 289660141. The reversal of 289660122 is 221066982.
It is a happy number.
289660122 is a `hidden beast` number, since 28 + 9 + 6 + 601 + 22 = 666.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 514213 + ... + 514775.
It is an arithmetic number, because the mean of its divisors is an integer number (13274586).
Almost surely, 2289660122 is an apocalyptic number.
289660122 is an abundant number, since it is smaller than the sum of its proper divisors (347520006).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
289660122 is a wasteful number, since it uses less digits than its factorization.
289660122 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 955 (or 952 counting only the distinct ones).
The product of its (nonzero) digits is 20736, while the sum is 36.
The square root of 289660122 is about 17019.4042786462. The cubic root of 289660122 is about 661.6519088328.
The spelling of 289660122 in words is "two hundred eighty-nine million, six hundred sixty thousand, one hundred twenty-two".
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