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19028589123168 = 25325323944911617
BaseRepresentation
bin1000101001110011100000…
…10010111001011001100000
32111101010010002112000101100
410110321300102321121200
54443231022303420133
6104245340235434400
74002525114555102
oct424716022713140
974333102460340
1019028589123168
116076a85538569
122173a4bbb5a00
13a80507cc3b31
1449adbab19572
1522ee9d455e13
hex114e704b9660

19028589123168 has 288 divisors, whose sum is σ = 55492308144000. Its totient is φ = 6182813564928.

The previous prime is 19028589123157. The next prime is 19028589123169. The reversal of 19028589123168 is 86132198582091.

19028589123168 is a `hidden beast` number, since 1 + 9 + 0 + 2 + 8 + 589 + 12 + 31 + 6 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19028589123169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1637989296 + ... + 1638000912.

It is an arithmetic number, because the mean of its divisors is an integer number (192681625500).

Almost surely, 219028589123168 is an apocalyptic number.

19028589123168 is a gapful number since it is divisible by the number (18) 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 19028589123168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27746154072000).

19028589123168 is an abundant number, since it is smaller than the sum of its proper divisors (36463719020832).

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

19028589123168 is a wasteful number, since it uses less digits than its factorization.

19028589123168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12374 (or 12363 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 63.

The spelling of 19028589123168 in words is "nineteen trillion, twenty-eight billion, five hundred eighty-nine million, one hundred twenty-three thousand, one hundred sixty-eight".