Base | Representation |
---|---|
bin | 1011010001001101111… |
… | …01100010110001010001 |
3 | 1101000102200110210011101 |
4 | 11220212331202301101 |
5 | 22320441341132144 |
6 | 453513315144401 |
7 | 36655123564456 |
oct | 5504675426121 |
9 | 1330380423141 |
10 | 387200724049 |
11 | 13a235794997 |
12 | 630608a5101 |
13 | 2a688a18389 |
14 | 14a5236782d |
15 | a112de56d4 |
hex | 5a26f62c51 |
387200724049 has 2 divisors, whose sum is σ = 387200724050. Its totient is φ = 387200724048.
The previous prime is 387200724023. The next prime is 387200724181. The reversal of 387200724049 is 940427002783.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 382338172225 + 4862551824 = 618335^2 + 69732^2 .
It is an emirp because it is prime and its reverse (940427002783) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 387200724049 - 215 = 387200691281 is a prime.
It is not a weakly prime, because it can be changed into another prime (387200725049) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193600362024 + 193600362025.
It is an arithmetic number, because the mean of its divisors is an integer number (193600362025).
Almost surely, 2387200724049 is an apocalyptic number.
It is an amenable number.
387200724049 is a deficient number, since it is larger than the sum of its proper divisors (1).
387200724049 is an equidigital number, since it uses as much as digits as its factorization.
387200724049 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 677376, while the sum is 46.
The spelling of 387200724049 in words is "three hundred eighty-seven billion, two hundred million, seven hundred twenty-four thousand, forty-nine".
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