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1968495833754 = 233439719074583
BaseRepresentation
bin11100101001010011011…
…111101011001010011010
320222012000212012101102000
4130221103133223022122
5224222434413140004
64104151533221430
7262135106336622
oct34512337531232
96865025171360
101968495833754
1169991a64145a
12279611331876
1311382267b898
146b3c0779882
15363122d4c39
hex1ca537eb29a

1968495833754 has 128 divisors (see below), whose sum is σ = 4525670983680. Its totient is φ = 633827400192.

The previous prime is 1968495833723. The next prime is 1968495833783. The reversal of 1968495833754 is 4573385948691.

1968495833754 is a `hidden beast` number, since 1 + 9 + 6 + 8 + 4 + 9 + 583 + 37 + 5 + 4 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 429518947 + ... + 429523529.

It is an arithmetic number, because the mean of its divisors is an integer number (35356804560).

Almost surely, 21968495833754 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1968495833754, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2262835491840).

1968495833754 is an abundant number, since it is smaller than the sum of its proper divisors (2557175149926).

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

1968495833754 is a wasteful number, since it uses less digits than its factorization.

1968495833754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6641 (or 6635 counting only the distinct ones).

The product of its digits is 783820800, while the sum is 72.

The spelling of 1968495833754 in words is "one trillion, nine hundred sixty-eight billion, four hundred ninety-five million, eight hundred thirty-three thousand, seven hundred fifty-four".

Divisors: 1 2 3 6 9 18 27 43 54 86 97 129 194 258 291 387 582 774 873 1161 1746 1907 2322 2619 3814 4171 4583 5238 5721 8342 9166 11442 12513 13749 17163 25026 27498 34326 37539 41247 51489 75078 82001 82494 102978 112617 123741 164002 184979 197069 225234 246003 247482 369958 394138 444551 492006 554937 591207 738009 889102 1109874 1182414 1333653 1476018 1664811 1773621 2214027 2667306 3329622 3547242 4000959 4428054 4994433 5320863 7954097 8001918 8739781 9988866 10641726 12002877 15908194 17479562 19115693 23862291 24005754 26219343 38231386 47724582 52438686 57347079 71586873 78658029 114694158 143173746 157316058 172041237 214760619 235974087 344082474 375810583 429521238 471948174 516123711 751621166 847758757 1032247422 1127431749 1695517514 2254863498 2543276271 3382295247 5086552542 6764590494 7629828813 10146885741 15259657626 20293771482 22889486439 36453626551 45778972878 72907253102 109360879653 218721759306 328082638959 656165277918 984247916877 1968495833754