Base | Representation |
---|---|
bin | 100011110110… |
… | …0001001011101 |
3 | 1022100210020000 |
4 | 1013230021131 |
5 | 14302334203 |
6 | 1510444513 |
7 | 315511146 |
oct | 107541135 |
9 | 38323200 |
10 | 18793053 |
11 | a676554 |
12 | 6363739 |
13 | 3b7cc66 |
14 | 26d2acd |
15 | 19b34a3 |
hex | 11ec25d |
18793053 has 10 divisors (see below), whose sum is σ = 28073694. Its totient is φ = 12528648.
The previous prime is 18793051. The next prime is 18793067. The reversal of 18793053 is 35039781.
It can be written as a sum of positive squares in only one way, i.e., 17665209 + 1127844 = 4203^2 + 1062^2 .
It is not a de Polignac number, because 18793053 - 21 = 18793051 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 18792999 and 18793017.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18793051) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 115926 + ... + 116087.
Almost surely, 218793053 is an apocalyptic number.
It is an amenable number.
18793053 is a deficient number, since it is larger than the sum of its proper divisors (9280641).
18793053 is an equidigital number, since it uses as much as digits as its factorization.
18793053 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 232025 (or 232016 counting only the distinct ones).
The product of its (nonzero) digits is 22680, while the sum is 36.
The square root of 18793053 is about 4335.0955006782. The cubic root of 18793053 is about 265.8678230381.
The spelling of 18793053 in words is "eighteen million, seven hundred ninety-three thousand, fifty-three".
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