Base | Representation |
---|---|
bin | 100010110110… |
… | …1101011010101 |
3 | 1021101110121221 |
4 | 1011231223111 |
5 | 14134300104 |
6 | 1451410341 |
7 | 311222653 |
oct | 105555325 |
9 | 37343557 |
10 | 18275029 |
11 | a352333 |
12 | 61539b1 |
13 | 3a2b236 |
14 | 25d9dd3 |
15 | 190ec54 |
hex | 116dad5 |
18275029 has 2 divisors, whose sum is σ = 18275030. Its totient is φ = 18275028.
The previous prime is 18275021. The next prime is 18275069. The reversal of 18275029 is 92057281.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 10712529 + 7562500 = 3273^2 + 2750^2 .
It is a cyclic number.
It is not a de Polignac number, because 18275029 - 23 = 18275021 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 18274985 and 18275003.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (18275021) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9137514 + 9137515.
It is an arithmetic number, because the mean of its divisors is an integer number (9137515).
Almost surely, 218275029 is an apocalyptic number.
It is an amenable number.
18275029 is a deficient number, since it is larger than the sum of its proper divisors (1).
18275029 is an equidigital number, since it uses as much as digits as its factorization.
18275029 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 10080, while the sum is 34.
The square root of 18275029 is about 4274.9302918293. The cubic root of 18275029 is about 263.4021759159.
The spelling of 18275029 in words is "eighteen million, two hundred seventy-five thousand, twenty-nine".
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