Base | Representation |
---|---|
bin | 10001001011000… |
… | …010111001101010 |
3 | 202002010102001210 |
4 | 101023002321222 |
5 | 1042223430023 |
6 | 44331053550 |
7 | 10065610263 |
oct | 2113027152 |
9 | 662112053 |
10 | 288108138 |
11 | 1386a19aa |
12 | 805a12b6 |
13 | 478c60b6 |
14 | 2a39996a |
15 | 1a460593 |
hex | 112c2e6a |
288108138 has 8 divisors (see below), whose sum is σ = 576216288. Its totient is φ = 96036044.
The previous prime is 288108137. The next prime is 288108187. The reversal of 288108138 is 831801882.
It is a sphenic number, since it is the product of 3 distinct primes.
288108138 is an admirable number.
It is a junction number, because it is equal to n+sod(n) for n = 288108096 and 288108105.
It is not an unprimeable number, because it can be changed into a prime (288108137) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24009006 + ... + 24009017.
It is an arithmetic number, because the mean of its divisors is an integer number (72027036).
Almost surely, 2288108138 is an apocalyptic number.
288108138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
288108138 is a wasteful number, since it uses less digits than its factorization.
288108138 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 48018028.
The product of its (nonzero) digits is 24576, while the sum is 39.
The square root of 288108138 is about 16973.7484958391. The cubic root of 288108138 is about 660.4680930956.
The spelling of 288108138 in words is "two hundred eighty-eight million, one hundred eight thousand, one hundred thirty-eight".
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