Base | Representation |
---|---|
bin | 1110100111110011011… |
… | …11000100001011101101 |
3 | 1210000210112122210012001 |
4 | 13103321233010023231 |
5 | 31212411423233041 |
6 | 1022445133412301 |
7 | 51204043066561 |
oct | 7237157041355 |
9 | 1700715583161 |
10 | 502406071021 |
11 | 184084147248 |
12 | 8145293a091 |
13 | 384b8780b3a |
14 | 1a4609c36a1 |
15 | d106ea8131 |
hex | 74f9bc42ed |
502406071021 has 2 divisors, whose sum is σ = 502406071022. Its totient is φ = 502406071020.
The previous prime is 502406071009. The next prime is 502406071061. The reversal of 502406071021 is 120170604205.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 349028097796 + 153377973225 = 590786^2 + 391635^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-502406071021 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (502406071061) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251203035510 + 251203035511.
It is an arithmetic number, because the mean of its divisors is an integer number (251203035511).
Almost surely, 2502406071021 is an apocalyptic number.
It is an amenable number.
502406071021 is a deficient number, since it is larger than the sum of its proper divisors (1).
502406071021 is an equidigital number, since it uses as much as digits as its factorization.
502406071021 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 3360, while the sum is 28.
Adding to 502406071021 its reverse (120170604205), we get a palindrome (622576675226).
The spelling of 502406071021 in words is "five hundred two billion, four hundred six million, seventy-one thousand, twenty-one".
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