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68233784 = 2317501719
BaseRepresentation
bin1000001000100…
…10101000111000
311202101122011012
410010102220320
5114431440114
610434253052
71455656213
oct404225070
9152348135
1068233784
1135575063
121aa27188
13111a0928
1490c277a
155ecc63e
hex4112a38

68233784 has 16 divisors (see below), whose sum is σ = 135464400. Its totient is φ = 32109952.

The previous prime is 68233771. The next prime is 68233787. The reversal of 68233784 is 48733286.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68233787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250724 + ... + 250995.

It is an arithmetic number, because the mean of its divisors is an integer number (8466525).

Almost surely, 268233784 is an apocalyptic number.

It is an amenable number.

68233784 is a deficient number, since it is larger than the sum of its proper divisors (67230616).

68233784 is a wasteful number, since it uses less digits than its factorization.

68233784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501742 (or 501738 counting only the distinct ones).

The product of its digits is 193536, while the sum is 41.

The square root of 68233784 is about 8260.3743256586. The cubic root of 68233784 is about 408.6327328376.

The spelling of 68233784 in words is "sixty-eight million, two hundred thirty-three thousand, seven hundred eighty-four".

Divisors: 1 2 4 8 17 34 68 136 501719 1003438 2006876 4013752 8529223 17058446 34116892 68233784