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68140014 = 23371911607
BaseRepresentation
bin1000000111110…
…11101111101110
311202012212112020
410003323233232
5114420440024
610432251010
71455115635
oct403735756
9152185466
1068140014
1135510668
121a9a0a66
131116a047
14909a51c
155eae979
hex40fbbee

68140014 has 32 divisors (see below), whose sum is σ = 140783616. Its totient is φ = 21970080.

The previous prime is 68140003. The next prime is 68140069. The reversal of 68140014 is 41004186.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41599 + ... + 43205.

It is an arithmetic number, because the mean of its divisors is an integer number (4399488).

Almost surely, 268140014 is an apocalyptic number.

68140014 is an abundant number, since it is smaller than the sum of its proper divisors (72643602).

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

68140014 is a wasteful number, since it uses less digits than its factorization.

68140014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1840.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 68140014 is about 8254.6964813977. The cubic root of 68140014 is about 408.4454597349.

The spelling of 68140014 in words is "sixty-eight million, one hundred forty thousand, fourteen".

Divisors: 1 2 3 6 37 74 111 191 222 382 573 1146 1607 3214 4821 7067 9642 14134 21201 42402 59459 118918 178377 306937 356754 613874 920811 1841622 11356669 22713338 34070007 68140014