Base | Representation |
---|---|
bin | 1100100001000… |
… | …10110011101001 |
3 | 21022120120011011 |
4 | 12100202303221 |
5 | 203340001134 |
6 | 14230303521 |
7 | 2413325641 |
oct | 620426351 |
9 | 238516134 |
10 | 105000169 |
11 | 542a71aa |
12 | 2b1b7ba1 |
13 | 189a46a1 |
14 | dd33521 |
15 | 9341264 |
hex | 6422ce9 |
105000169 has 2 divisors, whose sum is σ = 105000170. Its totient is φ = 105000168.
The previous prime is 105000167. The next prime is 105000173. The reversal of 105000169 is 961000501.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 56070144 + 48930025 = 7488^2 + 6995^2 .
It is an emirp because it is prime and its reverse (961000501) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 105000169 - 21 = 105000167 is a prime.
It is a super-2 number, since 2×1050001692 = 22050070980057122, which contains 22 as substring.
Together with 105000167, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (105000163) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52500084 + 52500085.
It is an arithmetic number, because the mean of its divisors is an integer number (52500085).
Almost surely, 2105000169 is an apocalyptic number.
It is an amenable number.
105000169 is a deficient number, since it is larger than the sum of its proper divisors (1).
105000169 is an equidigital number, since it uses as much as digits as its factorization.
105000169 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 270, while the sum is 22.
The square root of 105000169 is about 10246.9590123119. The cubic root of 105000169 is about 471.7696511395.
The spelling of 105000169 in words is "one hundred five million, one hundred sixty-nine", and thus it is an aban number.
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