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68088812 = 221110914197
BaseRepresentation
bin1000000111011…
…11001111101100
311202010021021212
410003233033230
5114412320222
610431213552
71454513441
oct403571754
9152107255
1068088812
1135486150
121a9772b8
131114c94c
1490859c8
155e9e6e2
hex40ef3ec

68088812 has 24 divisors (see below), whose sum is σ = 131189520. Its totient is φ = 30663360.

The previous prime is 68088793. The next prime is 68088833. The reversal of 68088812 is 21888086.

It is a self number, because there is not a number n which added to its sum of digits gives 68088812.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2303 + ... + 11894.

It is an arithmetic number, because the mean of its divisors is an integer number (5466230).

Almost surely, 268088812 is an apocalyptic number.

It is an amenable number.

68088812 is a deficient number, since it is larger than the sum of its proper divisors (63100708).

68088812 is a wasteful number, since it uses less digits than its factorization.

68088812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14321 (or 14319 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 41.

The square root of 68088812 is about 8251.5945125776. The cubic root of 68088812 is about 408.3431289427.

The spelling of 68088812 in words is "sixty-eight million, eighty-eight thousand, eight hundred twelve".

Divisors: 1 2 4 11 22 44 109 218 436 1199 2398 4796 14197 28394 56788 156167 312334 624668 1547473 3094946 6189892 17022203 34044406 68088812