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387200724049 is a prime number
BaseRepresentation
bin1011010001001101111…
…01100010110001010001
31101000102200110210011101
411220212331202301101
522320441341132144
6453513315144401
736655123564456
oct5504675426121
91330380423141
10387200724049
1113a235794997
12630608a5101
132a688a18389
1414a5236782d
15a112de56d4
hex5a26f62c51

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".