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68982786475176 = 233717191197641923
BaseRepresentation
bin11111010111101010011100…
…11110111100010010101000
3100001020200121222220200102010
433223311032132330102220
533020203221314201201
6402414130555235520
720346561520235310
oct1753651636742250
9301220558820363
1068982786475176
111aa86487651262
1278a13ab748ba0
132c65083436722
141306adb23a440
157e9601e7abd6
hex3ebd4e7bc4a8

68982786475176 has 256 divisors, whose sum is σ = 210845227253760. Its totient is φ = 18359174615040.

The previous prime is 68982786475151. The next prime is 68982786475259. The reversal of 68982786475176 is 67157468728986.

It is a Harshad number since it is a multiple of its sum of digits (84).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 107141751 + ... + 107783673.

It is an arithmetic number, because the mean of its divisors is an integer number (823614168960).

Almost surely, 268982786475176 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 68982786475176, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105422613626880).

68982786475176 is an abundant number, since it is smaller than the sum of its proper divisors (141862440778584).

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

68982786475176 is a wasteful number, since it uses less digits than its factorization.

68982786475176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642344 (or 642340 counting only the distinct ones).

The product of its digits is 13655900160, while the sum is 84.

The spelling of 68982786475176 in words is "sixty-eight trillion, nine hundred eighty-two billion, seven hundred eighty-six million, four hundred seventy-five thousand, one hundred seventy-six".