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388496238816 = 25371931981527
BaseRepresentation
bin1011010011101000010…
…11100010100011100000
31101010202222012202022210
411221310023202203200
522331120014120231
6454250034402120
740032204354450
oct5516413424340
91333688182283
10388496238816
1113a83aaa9354
1263362730340
132a83424296a
1414b3643bd60
15a18b9eba46
hex5a742e28e0

388496238816 has 192 divisors, whose sum is σ = 1266406686720. Its totient is φ = 101764615680.

The previous prime is 388496238751. The next prime is 388496238821. The reversal of 388496238816 is 618832694883.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is a congruent 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 31 ways as a sum of consecutive naturals, for example, 94956 + ... + 886571.

It is an arithmetic number, because the mean of its divisors is an integer number (6595868160).

Almost surely, 2388496238816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 388496238816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (633203343360).

388496238816 is an abundant number, since it is smaller than the sum of its proper divisors (877910447904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

388496238816 is a wasteful number, since it uses less digits than its factorization.

388496238816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981597 (or 981589 counting only the distinct ones).

The product of its digits is 95551488, while the sum is 66.

The spelling of 388496238816 in words is "three hundred eighty-eight billion, four hundred ninety-six million, two hundred thirty-eight thousand, eight hundred sixteen".