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387011057425 = 52419288177
BaseRepresentation
bin1011010000110111010…
…10000001011100010001
31100222221110120201110121
411220123222001130101
522320044312314200
6453442422030241
736650331465526
oct5503352013421
91328843521417
10387011057425
1113a14871a613
1263009278381
132a65863b5c5
1414a350b514d
15a10142ce1a
hex5a1ba81711

387011057425 has 18 divisors (see below), whose sum is σ = 481047231158. Its totient is φ = 308866419840.

The previous prime is 387011057401. The next prime is 387011057453. The reversal of 387011057425 is 524750110783.

It can be written as a sum of positive squares in 3 ways, for example, as 36987367041 + 350023690384 = 192321^2 + 591628^2 .

It is not a de Polignac number, because 387011057425 - 235 = 352651319057 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4344937 + ... + 4433113.

Almost surely, 2387011057425 is an apocalyptic number.

It is an amenable number.

387011057425 is a deficient number, since it is larger than the sum of its proper divisors (94036173733).

387011057425 is an frugal number, since it uses more digits than its factorization.

387011057425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89025 (or 88601 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 43.

The spelling of 387011057425 in words is "three hundred eighty-seven billion, eleven million, fifty-seven thousand, four hundred twenty-five".

Divisors: 1 5 25 419 2095 10475 88177 175561 440885 877805 2204425 4389025 36946163 184730815 923654075 15480442297 77402211485 387011057425