Base | Representation |
---|---|
bin | 111100010101010… |
… | …110100000011001 |
3 | 2121112200121202021 |
4 | 330111112200121 |
5 | 4033112331134 |
6 | 244235334441 |
7 | 34040546236 |
oct | 7425264031 |
9 | 2545617667 |
10 | 1012230169 |
11 | 47a417565 |
12 | 242bb1421 |
13 | 13192cb82 |
14 | 9861278d |
15 | 5dcea0b4 |
hex | 3c556819 |
1012230169 has 2 divisors, whose sum is σ = 1012230170. Its totient is φ = 1012230168.
The previous prime is 1012230113. The next prime is 1012230179. The reversal of 1012230169 is 9610322101.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1005650944 + 6579225 = 31712^2 + 2565^2 .
It is an emirp because it is prime and its reverse (9610322101) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1012230169 - 27 = 1012230041 is a prime.
It is a super-2 number, since 2×10122301692 = 2049219830067537122, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (1012230179) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506115084 + 506115085.
It is an arithmetic number, because the mean of its divisors is an integer number (506115085).
Almost surely, 21012230169 is an apocalyptic number.
It is an amenable number.
1012230169 is a deficient number, since it is larger than the sum of its proper divisors (1).
1012230169 is an equidigital number, since it uses as much as digits as its factorization.
1012230169 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 648, while the sum is 25.
The square root of 1012230169 is about 31815.5648857599. The cubic root of 1012230169 is about 1004.0602153400.
The spelling of 1012230169 in words is "one billion, twelve million, two hundred thirty thousand, one hundred sixty-nine".
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