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68505206 = 271117137191
BaseRepresentation
bin1000001010101…
…00111001110110
311202220102110212
410011110321312
5120014131311
610444145422
71461166430
oct405247166
9152812425
1068505206
113573aa80
121ab38272
1311267333
149153650
156032c8b
hex4154e76

68505206 has 64 divisors (see below), whose sum is σ = 137355264. Its totient is φ = 24806400.

The previous prime is 68505193. The next prime is 68505211. The reversal of 68505206 is 60250586.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 358571 + ... + 358761.

It is an arithmetic number, because the mean of its divisors is an integer number (2146176).

Almost surely, 268505206 is an apocalyptic number.

68505206 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

68505206 is a wasteful number, since it uses less digits than its factorization.

68505206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 68505206 is about 8276.7871786098. The cubic root of 68505206 is about 409.1738390588.

The spelling of 68505206 in words is "sixty-eight million, five hundred five thousand, two hundred six".

Divisors: 1 2 7 11 14 17 22 34 77 119 137 154 187 191 238 274 374 382 959 1309 1337 1507 1918 2101 2329 2618 2674 3014 3247 4202 4658 6494 10549 14707 16303 21098 22729 25619 26167 29414 32606 35717 45458 51238 52334 71434 179333 183169 250019 287837 358666 366338 444839 500038 575674 889678 2014859 3113873 4029718 4893229 6227746 9786458 34252603 68505206