| Base | Representation |
|---|---|
| bin | 11111000101000010… |
| … | …01101111011001000 |
| 3 | 1121001211021001110200 |
| 4 | 33202201031323020 |
| 5 | 233132411313423 |
| 6 | 11355355012200 |
| 7 | 1130322242211 |
| oct | 174241157310 |
| 9 | 47054231420 |
| 10 | 16685260488 |
| 11 | 7092438186 |
| 12 | 3297a3a060 |
| 13 | 175ba34700 |
| 14 | b43d90408 |
| 15 | 679c55d43 |
| hex | 3e284dec8 |
16685260488 has 108 divisors (see below), whose sum is σ = 48974557905. Its totient is φ = 5129542080.
The previous prime is 16685260451. The next prime is 16685260489. The reversal of 16685260488 is 88406258661.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
16685260488 is a `hidden beast` number, since 1 + 66 + 85 + 26 + 0 + 488 = 666.
16685260488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 2 ways, for example, as 14266391364 + 2418869124 = 119442^2 + 49182^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=91338.
It is not an unprimeable number, because it can be changed into a prime (16685260489) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 14248143 + ... + 14249313.
Almost surely, 216685260488 is an apocalyptic number.
16685260488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 16685260488
16685260488 is an abundant number, since it is smaller than the sum of its proper divisors (32289297417).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
16685260488 is a wasteful number, since it uses less digits than its factorization.
16685260488 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2380 (or 1189 counting only the distinct ones).
The product of its (nonzero) digits is 4423680, while the sum is 54.
The spelling of 16685260488 in words is "sixteen billion, six hundred eighty-five million, two hundred sixty thousand, four hundred eighty-eight".
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