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385606061568 = 29337132171973
BaseRepresentation
bin1011001110001111110…
…10011000111000000000
31100212022112211112111000
411213013322120320000
522304210122432233
6453051152052000
736600451304640
oct5470772307000
91325275745430
10385606061568
11139597629412
1262896834000
132a493530c00
1414940662520
15a06cdecd13
hex59c7e98e00

385606061568 has 1920 divisors, whose sum is σ = 1595919283200. Its totient is φ = 89436192768.

The previous prime is 385606061563. The next prime is 385606061569. The reversal of 385606061568 is 865160606583.

385606061568 is a `hidden beast` number, since 3 + 8 + 560 + 6 + 0 + 6 + 15 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385606061563) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 5282274780 + ... + 5282274852.

It is an arithmetic number, because the mean of its divisors is an integer number (831207960).

Almost surely, 2385606061568 is an apocalyptic number.

385606061568 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 385606061568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (797959641600).

385606061568 is an abundant number, since it is smaller than the sum of its proper divisors (1210313221632).

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

385606061568 is a wasteful number, since it uses less digits than its factorization.

385606061568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 385606061568 in words is "three hundred eighty-five billion, six hundred six million, sixty-one thousand, five hundred sixty-eight".