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388288065139 = 13283105541741
BaseRepresentation
bin1011010011001111100…
…01011010111001110011
31101010020110111102201121
411221213301122321303
522330203221041024
6454213240443111
740024066045222
oct5514761327163
91333213442647
10388288065139
1113a743543397
1263304a79497
132a800086180
1414b1692ccb9
15a1785ca8e4
hex5a67c5ae73

388288065139 has 8 divisors (see below), whose sum is σ = 419633966192. Its totient is φ = 357153248160.

The previous prime is 388288065131. The next prime is 388288065163. The reversal of 388288065139 is 931560882883.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 388288065139 - 23 = 388288065131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (388288065131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52767192 + ... + 52774549.

It is an arithmetic number, because the mean of its divisors is an integer number (52454245774).

Almost surely, 2388288065139 is an apocalyptic number.

388288065139 is a deficient number, since it is larger than the sum of its proper divisors (31345901053).

388288065139 is a wasteful number, since it uses less digits than its factorization.

388288065139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105542037.

The product of its (nonzero) digits is 19906560, while the sum is 61.

The spelling of 388288065139 in words is "three hundred eighty-eight billion, two hundred eighty-eight million, sixty-five thousand, one hundred thirty-nine".

Divisors: 1 13 283 3679 105541741 1372042633 29868312703 388288065139