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68319229905732 = 22313437943781447
BaseRepresentation
bin11111000100010110011110…
…11011100000101101000100
322221220020212121011101002110
433202023033123200231010
532423320240323440412
6401145230531141020
720250621130404411
oct1742131733405504
9287806777141073
1068319229905732
111a850028226413
1277b4883a44770
132c176252670a0
1412c295001b108
157d7217526d3c
hex3e22cf6e0b44

68319229905732 has 24 divisors (see below), whose sum is σ = 171673962327616. Its totient is φ = 21021301509408.

The previous prime is 68319229905673. The next prime is 68319229905737. The reversal of 68319229905732 is 23750992291386.

68319229905732 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (68319229905737) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 218971890568 + ... + 218971890879.

Almost surely, 268319229905732 is an apocalyptic number.

It is an amenable number.

68319229905732 is an abundant number, since it is smaller than the sum of its proper divisors (103354732421884).

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

68319229905732 is a wasteful number, since it uses less digits than its factorization.

68319229905732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437943781467 (or 437943781465 counting only the distinct ones).

The product of its (nonzero) digits is 88179840, while the sum is 66.

The spelling of 68319229905732 in words is "sixty-eight trillion, three hundred nineteen billion, two hundred twenty-nine million, nine hundred five thousand, seven hundred thirty-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 437943781447 875887562894 1313831344341 1751775125788 2627662688682 5255325377364 5693269158811 11386538317622 17079807476433 22773076635244 34159614952866 68319229905732