| Base | Representation |
|---|---|
| bin | 1001110010100101… |
| … | …0011000100000101 |
| 3 | 20210011011212121100 |
| 4 | 2130221103010011 |
| 5 | 20340241243220 |
| 6 | 1112440410313 |
| 7 | 122061145401 |
| oct | 23451230405 |
| 9 | 6704155540 |
| 10 | 2628071685 |
| 11 | 1129529178 |
| 12 | 614176999 |
| 13 | 32b621305 |
| 14 | 1ad06c101 |
| 15 | 105ac7d90 |
| hex | 9ca53105 |
2628071685 has 48 divisors (see below), whose sum is σ = 4620985200. Its totient is φ = 1381585920.
The previous prime is 2628071683. The next prime is 2628071687. The reversal of 2628071685 is 5861708262.
2628071685 is a `hidden beast` number, since 2 + 628 + 0 + 7 + 16 + 8 + 5 = 666.
It is an interprime number because it is at equal distance from previous prime (2628071683) and next prime (2628071687).
It can be written as a sum of positive squares in 8 ways, for example, as 120165444 + 2507906241 = 10962^2 + 50079^2 .
It is not a de Polignac number, because 2628071685 - 21 = 2628071683 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 2628071685.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2628071681) 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 47 ways as a sum of consecutive naturals, for example, 917155 + ... + 920015.
It is an arithmetic number, because the mean of its divisors is an integer number (96270525).
Almost surely, 22628071685 is an apocalyptic number.
It is an amenable number.
2628071685 is a deficient number, since it is larger than the sum of its proper divisors (1992913515).
2628071685 is a wasteful number, since it uses less digits than its factorization.
2628071685 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3158 (or 3155 counting only the distinct ones).
The product of its (nonzero) digits is 322560, while the sum is 45.
The square root of 2628071685 is about 51264.7216416904. The cubic root of 2628071685 is about 1379.9999448645. Note that the first 4 decimals are identical.
The spelling of 2628071685 in words is "two billion, six hundred twenty-eight million, seventy-one thousand, six hundred eighty-five".
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