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68076236400 = 2435256730197
BaseRepresentation
bin111111011001101010…
…001110111001110000
320111201100110010022220
4333121222032321300
52103410004031100
651135050001040
74626664314264
oct773152167160
9214640403286
1068076236400
1126964295aa7
121123a716180
13655ba135b3
14341b3240a4
151b867abaa0
hexfd9a8ee70

68076236400 has 60 divisors (see below), whose sum is σ = 218070881112. Its totient is φ = 18153662720.

The previous prime is 68076236353. The next prime is 68076236491. The reversal of 68076236400 is 463267086.

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28363899 + ... + 28366298.

Almost surely, 268076236400 is an apocalyptic number.

68076236400 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68076236400 is an abundant number, since it is smaller than the sum of its proper divisors (149994644712).

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

68076236400 is a wasteful number, since it uses less digits than its factorization.

68076236400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56730218 (or 56730207 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 42.

The spelling of 68076236400 in words is "sixty-eight billion, seventy-six million, two hundred thirty-six thousand, four hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 40 48 50 60 75 80 100 120 150 200 240 300 400 600 1200 56730197 113460394 170190591 226920788 283650985 340381182 453841576 567301970 680762364 850952955 907683152 1134603940 1361524728 1418254925 1701905910 2269207880 2723049456 2836509850 3403811820 4254764775 4538415760 5673019700 6807623640 8509529550 11346039400 13615247280 17019059100 22692078800 34038118200 68076236400