Base | Representation |
---|---|
bin | 1011010101010001101… |
… | …11101001000001101101 |
3 | 1101020001120120101112111 |
4 | 11222220313221001231 |
5 | 22334422313334033 |
6 | 454513453204021 |
7 | 40063130134255 |
oct | 5525067510155 |
9 | 1336046511474 |
10 | 389380214893 |
11 | 140153a8669a |
12 | 6356a790611 |
13 | 2a945418927 |
14 | 14bbb9c6965 |
15 | a1de4107cd |
hex | 5aa8de906d |
389380214893 has 2 divisors, whose sum is σ = 389380214894. Its totient is φ = 389380214892.
The previous prime is 389380214879. The next prime is 389380214983. The reversal of 389380214893 is 398412083983.
Together with next prime (389380214983) it forms an Ormiston pair, because they use the same digits, order apart.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 246902653449 + 142477561444 = 496893^2 + 377462^2 .
It is a cyclic number.
It is not a de Polignac number, because 389380214893 - 237 = 251941261421 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (389380215893) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194690107446 + 194690107447.
It is an arithmetic number, because the mean of its divisors is an integer number (194690107447).
Almost surely, 2389380214893 is an apocalyptic number.
It is an amenable number.
389380214893 is a deficient number, since it is larger than the sum of its proper divisors (1).
389380214893 is an equidigital number, since it uses as much as digits as its factorization.
389380214893 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 8957952, while the sum is 58.
The spelling of 389380214893 in words is "three hundred eighty-nine billion, three hundred eighty million, two hundred fourteen thousand, eight hundred ninety-three".
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