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68989828377600 = 2103352131492272
BaseRepresentation
bin11111010111110111100100…
…01101101010110000000000
3100001021100210202111101112000
433223323302031222300000
533020312132031040400
6402421253431504000
720350231155355134
oct1753736215526000
9301240722441460
1068989828377600
111aa89470615829
1278a2835b28000
132c659363210b0
1413071a85833c4
157e98b52c0600
hex3ebef236ac00

68989828377600 has 1584 divisors, whose sum is σ = 275884891716000. Its totient is φ = 16793828720640.

The previous prime is 68989828377563. The next prime is 68989828377629. The reversal of 68989828377600 is 677382898986.

68989828377600 is a `hidden beast` number, since 6 + 89 + 8 + 98 + 28 + 377 + 60 + 0 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 68989828377600.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 303919948687 + ... + 303919948913.

Almost surely, 268989828377600 is an apocalyptic number.

68989828377600 is a gapful number since it is divisible by the number (60) 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 68989828377600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137942445858000).

68989828377600 is an abundant number, since it is smaller than the sum of its proper divisors (206895063338400).

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

68989828377600 is a wasteful number, since it uses less digits than its factorization.

68989828377600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655 (or 399 counting only the distinct ones).

The product of its (nonzero) digits is 3511517184, while the sum is 81.

The spelling of 68989828377600 in words is "sixty-eight trillion, nine hundred eighty-nine billion, eight hundred twenty-eight million, three hundred seventy-seven thousand, six hundred".