Base | Representation |
---|---|
bin | 11001000011101… |
… | …101101101010101 |
3 | 1002022001201221111 |
4 | 121003231231111 |
5 | 1330110412203 |
6 | 105414415021 |
7 | 13263242536 |
oct | 3103555525 |
9 | 1068051844 |
10 | 420404053 |
11 | 1a6341873 |
12 | b8961471 |
13 | 691368c4 |
14 | 3db9668d |
15 | 26d9426d |
hex | 190edb55 |
420404053 has 2 divisors, whose sum is σ = 420404054. Its totient is φ = 420404052.
The previous prime is 420404011. The next prime is 420404057. The reversal of 420404053 is 350404024.
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 417098929 + 3305124 = 20423^2 + 1818^2 .
It is a cyclic number.
It is not a de Polignac number, because 420404053 - 29 = 420403541 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (420404057) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210202026 + 210202027.
It is an arithmetic number, because the mean of its divisors is an integer number (210202027).
Almost surely, 2420404053 is an apocalyptic number.
It is an amenable number.
420404053 is a deficient number, since it is larger than the sum of its proper divisors (1).
420404053 is an equidigital number, since it uses as much as digits as its factorization.
420404053 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1920, while the sum is 22.
The square root of 420404053 is about 20503.7570459660. The cubic root of 420404053 is about 749.1273126533.
Adding to 420404053 its reverse (350404024), we get a palindrome (770808077).
The spelling of 420404053 in words is "four hundred twenty million, four hundred four thousand, fifty-three".
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