| Base | Representation |
|---|---|
| bin | 110001101001101… |
| … | …0011110111100100 |
| 3 | 11022002212220021110 |
| 4 | 1203103103313210 |
| 5 | 11402444202000 |
| 6 | 433152145020 |
| 7 | 56166551544 |
| oct | 14323236744 |
| 9 | 4262786243 |
| 10 | 1666006500 |
| 11 | 785465384 |
| 12 | 3a5b38170 |
| 13 | 207206982 |
| 14 | 11b397324 |
| 15 | 9b3db850 |
| hex | 634d3de4 |
1666006500 has 96 divisors (see below), whose sum is σ = 5018832000. Its totient is φ = 428937600.
The previous prime is 1666006499. The next prime is 1666006501. The reversal of 1666006500 is 56006661.
1666006500 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (1666006499) and next prime (1666006501).
It is a Harshad number since it is a multiple of its sum of digits (30).
It is not an unprimeable number, because it can be changed into a prime (1666006501) 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 31 ways as a sum of consecutive naturals, for example, 24351 + ... + 62649.
It is an arithmetic number, because the mean of its divisors is an integer number (52279500).
Almost surely, 21666006500 is an apocalyptic number.
1666006500 is a gapful number since it is divisible by the number (10) 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 1666006500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2509416000).
1666006500 is an abundant number, since it is smaller than the sum of its proper divisors (3352825500).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1666006500 is a wasteful number, since it uses less digits than its factorization.
1666006500 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 38350 (or 38338 counting only the distinct ones).
The product of its (nonzero) digits is 6480, while the sum is 30.
The square root of 1666006500 is about 40816.7428881825. The cubic root of 1666006500 is about 1185.4745379968.
The spelling of 1666006500 in words is "one billion, six hundred sixty-six million, six thousand, five hundred".
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