Base | Representation |
---|---|
bin | 1110110011001… |
… | …00101000101001 |
3 | 22122121011210012 |
4 | 13121210220221 |
5 | 223240103134 |
6 | 20152501305 |
7 | 3035131232 |
oct | 731445051 |
9 | 278534705 |
10 | 124144169 |
11 | 64092396 |
12 | 356aa835 |
13 | 1c9482b6 |
14 | 126b8089 |
15 | ad736ce |
hex | 7664a29 |
124144169 has 2 divisors, whose sum is σ = 124144170. Its totient is φ = 124144168.
The previous prime is 124144127. The next prime is 124144177. The reversal of 124144169 is 961441421.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 92929600 + 31214569 = 9640^2 + 5587^2 .
It is an emirp because it is prime and its reverse (961441421) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 124144169 - 28 = 124143913 is a prime.
It is a super-2 number, since 2×1241441692 = 30823549393401122, which contains 22 as substring.
It is a Chen prime.
It is equal to p7064159 and since 124144169 and 7064159 have the same sum of digits, it is a Honaker prime.
It is not a weakly prime, because it can be changed into another prime (124144109) 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 as a sum of consecutive naturals, namely, 62072084 + 62072085.
It is an arithmetic number, because the mean of its divisors is an integer number (62072085).
Almost surely, 2124144169 is an apocalyptic number.
It is an amenable number.
124144169 is a deficient number, since it is larger than the sum of its proper divisors (1).
124144169 is an equidigital number, since it uses as much as digits as its factorization.
124144169 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 6912, while the sum is 32.
The square root of 124144169 is about 11142.0002243762. Note that the first 3 decimals coincide. The cubic root of 124144169 is about 498.8562777938.
The spelling of 124144169 in words is "one hundred twenty-four million, one hundred forty-four thousand, one hundred sixty-nine".
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