Base | Representation |
---|---|
bin | 100010110110… |
… | …0011110101111 |
3 | 1021101012220101 |
4 | 1011230132233 |
5 | 14134121002 |
6 | 1451331531 |
7 | 311202451 |
oct | 105543657 |
9 | 37335811 |
10 | 18270127 |
11 | a349687 |
12 | 6150ba7 |
13 | 3a28c35 |
14 | 25d82d1 |
15 | 190d587 |
hex | 116c7af |
18270127 has 2 divisors, whose sum is σ = 18270128. Its totient is φ = 18270126.
The previous prime is 18270113. The next prime is 18270139. The reversal of 18270127 is 72107281.
It is a strong prime.
It is an emirp because it is prime and its reverse (72107281) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 18270127 - 211 = 18268079 is a prime.
It is a super-2 number, since 2×182701272 = 667595081192258, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 18270095 and 18270104.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (18270727) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9135063 + 9135064.
It is an arithmetic number, because the mean of its divisors is an integer number (9135064).
Almost surely, 218270127 is an apocalyptic number.
18270127 is a deficient number, since it is larger than the sum of its proper divisors (1).
18270127 is an equidigital number, since it uses as much as digits as its factorization.
18270127 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1568, while the sum is 28.
The square root of 18270127 is about 4274.3569106943. The cubic root of 18270127 is about 263.3786225938.
The spelling of 18270127 in words is "eighteen million, two hundred seventy thousand, one hundred twenty-seven".
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