| Base | Representation |
|---|---|
| bin | 111111101000… |
| … | …011000101100 |
| 3 | 1011101110100000 |
| 4 | 333220120230 |
| 5 | 13232233432 |
| 6 | 1353304300 |
| 7 | 261532113 |
| oct | 77503054 |
| 9 | 34343300 |
| 10 | 16680492 |
| 11 | 9463334 |
| 12 | 5705090 |
| 13 | 35c051a |
| 14 | 2302c7a |
| 15 | 16e757c |
| hex | fe862c |
16680492 has 54 divisors (see below), whose sum is σ = 44062564. Its totient is φ = 5517720.
The previous prime is 16680467. The next prime is 16680509. The reversal of 16680492 is 29408661.
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.
16680492 is a `hidden beast` number, since 166 + 8 + 0 + 492 = 666.
It is a tau number, because it is divible by the number of its divisors (54).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is an unprimeable number.
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 17 ways as a sum of consecutive naturals, for example, 127267 + ... + 127397.
Almost surely, 216680492 is an apocalyptic number.
16680492 is a gapful number since it is divisible by the number (12) 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 16680492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22031282).
16680492 is an abundant number, since it is smaller than the sum of its proper divisors (27382072).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
16680492 is an equidigital number, since it uses as much as digits as its factorization.
16680492 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 281 (or 136 counting only the distinct ones).
The product of its (nonzero) digits is 20736, while the sum is 36.
The square root of 16680492 is about 4084.1758042474. The cubic root of 16680492 is about 255.5070878328.
It can be divided in two parts, 1668049 and 2, that added together give a triangular number (1668051 = T1826).
The spelling of 16680492 in words is "sixteen million, six hundred eighty thousand, four hundred ninety-two".
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