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388705378413 = 31111778950861
BaseRepresentation
bin1011010100000001010…
…01010110000001101101
31101011022112202010220210
411222000221112001231
522332032034102123
6454322505133033
740040324126052
oct5520051260155
91334275663823
10388705378413
1113a938063aa0
126340078a179
132a868679cc1
1414b5611d029
15a1a005de93
hex5a80a5606d

388705378413 has 8 divisors (see below), whose sum is σ = 565389641376. Its totient is φ = 235579017200.

The previous prime is 388705378381. The next prime is 388705378423. The reversal of 388705378413 is 314873507883.

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 388705378413 - 25 = 388705378381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388705378423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5889475398 + ... + 5889475463.

It is an arithmetic number, because the mean of its divisors is an integer number (70673705172).

Almost surely, 2388705378413 is an apocalyptic number.

388705378413 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

388705378413 is a deficient number, since it is larger than the sum of its proper divisors (176684262963).

388705378413 is a wasteful number, since it uses less digits than its factorization.

388705378413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11778950875.

The product of its (nonzero) digits is 13547520, while the sum is 57.

The spelling of 388705378413 in words is "three hundred eighty-eight billion, seven hundred five million, three hundred seventy-eight thousand, four hundred thirteen".

Divisors: 1 3 11 33 11778950861 35336852583 129568459471 388705378413