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68111519196 = 22372892912973
BaseRepresentation
bin111111011011110000…
…110100110111011100
320111210210211200020010
4333123300310313130
52103443022103241
651142350123220
74630603234500
oct773360646734
9214723750203
1068111519196
11269821a4536
121124a4b0510
136566117ca6
143421caa300
151b8992ad16
hexfdbc34ddc

68111519196 has 72 divisors (see below), whose sum is σ = 184909080720. Its totient is φ = 19456754688.

The previous prime is 68111519137. The next prime is 68111519251. The reversal of 68111519196 is 69191511186.

It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 5243766 + ... + 5256738.

Almost surely, 268111519196 is an apocalyptic number.

It is an amenable number.

68111519196 is an abundant number, since it is smaller than the sum of its proper divisors (116797561524).

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

68111519196 is a wasteful number, since it uses less digits than its factorization.

68111519196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21923 (or 21914 counting only the distinct ones).

The product of its digits is 116640, while the sum is 48.

The spelling of 68111519196 in words is "sixty-eight billion, one hundred eleven million, five hundred nineteen thousand, one hundred ninety-six".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 49 84 98 147 196 294 588 8929 12973 17858 25946 26787 35716 38919 51892 53574 62503 77838 90811 107148 125006 155676 181622 187509 250012 272433 363244 375018 437521 544866 635677 750036 875042 1089732 1271354 1312563 1750084 1907031 2542708 2625126 3814062 5250252 7628124 115835917 231671834 347507751 463343668 695015502 810851419 1390031004 1621702838 2432554257 3243405676 4865108514 5675959933 9730217028 11351919866 17027879799 22703839732 34055759598 68111519196