| Base | Representation |
|---|---|
| bin | 10011011101111… |
| … | …11011010101101 |
| 3 | 102101022011202200 |
| 4 | 21232333122231 |
| 5 | 313302011300 |
| 6 | 24112212113 |
| 7 | 4022066100 |
| oct | 1156773255 |
| 9 | 371264680 |
| 10 | 163313325 |
| 11 | 8420579a |
| 12 | 4683a039 |
| 13 | 27ab0906 |
| 14 | 17992737 |
| 15 | e50e200 |
| hex | 9bbf6ad |
163313325 has 54 divisors (see below), whose sum is σ = 340292394. Its totient is φ = 74652480.
The previous prime is 163313323. The next prime is 163313327. The reversal of 163313325 is 523313361.
It is a happy number.
163313325 is a `hidden beast` number, since 1 + 6 + 331 + 3 + 325 = 666.
It is an interprime number because it is at equal distance from previous prime (163313323) and next prime (163313327).
It can be written as a sum of positive squares in 3 ways, for example, as 3493161 + 159820164 = 1869^2 + 12642^2 .
It is not a de Polignac number, because 163313325 - 21 = 163313323 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (163313323) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 3619 + ... + 18431.
It is an arithmetic number, because the mean of its divisors is an integer number (6301711).
Almost surely, 2163313325 is an apocalyptic number.
163313325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
163313325 is an abundant number, since it is smaller than the sum of its proper divisors (176979069).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
163313325 is a wasteful number, since it uses less digits than its factorization.
163313325 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14843 (or 14828 counting only the distinct ones).
The product of its digits is 4860, while the sum is 27.
The square root of 163313325 is about 12779.4101976578. The cubic root of 163313325 is about 546.6053443922.
Adding to 163313325 its reverse (523313361), we get a palindrome (686626686).
The spelling of 163313325 in words is "one hundred sixty-three million, three hundred thirteen thousand, three hundred twenty-five".
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