Base | Representation |
---|---|
bin | 100011110111010110… |
… | …000100101100001101 |
3 | 10200101210102010220102 |
4 | 203313112010230031 |
5 | 1112331412401401 |
6 | 25405132100445 |
7 | 2532205216205 |
oct | 436726045415 |
9 | 120353363812 |
10 | 38509497101 |
11 | 15371675169 |
12 | 7568904725 |
13 | 3829336c9a |
14 | 1c1465b405 |
15 | 1005c1656b |
hex | 8f7584b0d |
38509497101 has 2 divisors, whose sum is σ = 38509497102. Its totient is φ = 38509497100.
The previous prime is 38509497079. The next prime is 38509497109. The reversal of 38509497101 is 10179490583.
38509497101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 35777344201 + 2732152900 = 189149^2 + 52270^2 .
It is an emirp because it is prime and its reverse (10179490583) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 38509497101 - 218 = 38509234957 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (38509497109) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19254748550 + 19254748551.
It is an arithmetic number, because the mean of its divisors is an integer number (19254748551).
Almost surely, 238509497101 is an apocalyptic number.
It is an amenable number.
38509497101 is a deficient number, since it is larger than the sum of its proper divisors (1).
38509497101 is an equidigital number, since it uses as much as digits as its factorization.
38509497101 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 272160, while the sum is 47.
The spelling of 38509497101 in words is "thirty-eight billion, five hundred nine million, four hundred ninety-seven thousand, one hundred one".
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