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68738494 = 21119316189
BaseRepresentation
bin1000001100011…
…01110110111110
311210100021111011
410012031312332
5120044112434
610453145434
71463160526
oct406156676
9153307434
1068738494
113588a280
121b02b27a
1311319586
1491b4686
15607be64
hex418ddbe

68738494 has 16 divisors (see below), whose sum is σ = 113070960. Its totient is φ = 31080960.

The previous prime is 68738491. The next prime is 68738519. The reversal of 68738494 is 49483786.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68738491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3849 + ... + 12340.

It is an arithmetic number, because the mean of its divisors is an integer number (7066935).

Almost surely, 268738494 is an apocalyptic number.

68738494 is a deficient number, since it is larger than the sum of its proper divisors (44332466).

68738494 is a wasteful number, since it uses less digits than its factorization.

68738494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16395.

The product of its digits is 1161216, while the sum is 49.

The square root of 68738494 is about 8290.8681089497. The cubic root of 68738494 is about 409.6377804240.

The spelling of 68738494 in words is "sixty-eight million, seven hundred thirty-eight thousand, four hundred ninety-four".

Divisors: 1 2 11 22 193 386 2123 4246 16189 32378 178079 356158 3124477 6248954 34369247 68738494