Base | Representation |
---|---|
bin | 10101011110010… |
… | …11000000011011 |
3 | 110112221221220012 |
4 | 22233023000123 |
5 | 332103404021 |
6 | 25512552135 |
7 | 4315101464 |
oct | 1257130033 |
9 | 415857805 |
10 | 180138011 |
11 | 92757399 |
12 | 503b264b |
13 | 2b421951 |
14 | 19cd1d6b |
15 | 10c3435b |
hex | abcb01b |
180138011 has 2 divisors, whose sum is σ = 180138012. Its totient is φ = 180138010.
The previous prime is 180137999. The next prime is 180138029. The reversal of 180138011 is 110831081.
180138011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 180138011 - 210 = 180136987 is a prime.
It is a super-2 number, since 2×1801380112 = 64899406014072242, which contains 22 as substring.
It is a Chen prime.
It is equal to p10037651 and since 180138011 and 10037651 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 (180138061) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90069005 + 90069006.
It is an arithmetic number, because the mean of its divisors is an integer number (90069006).
Almost surely, 2180138011 is an apocalyptic number.
180138011 is a deficient number, since it is larger than the sum of its proper divisors (1).
180138011 is an equidigital number, since it uses as much as digits as its factorization.
180138011 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 192, while the sum is 23.
The square root of 180138011 is about 13421.5502457801. The cubic root of 180138011 is about 564.7658841564.
Adding to 180138011 its reverse (110831081), we get a palindrome (290969092).
The spelling of 180138011 in words is "one hundred eighty million, one hundred thirty-eight thousand, eleven".
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