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68743654 = 2741911719
BaseRepresentation
bin1000001100011…
…11000111100110
311210100112120021
410012033013212
5120044244104
610453225354
71463211550
oct406170746
9153315507
1068743654
1135893141
121b03225a
131131ba25
1491b64d0
15607d754
hex418f1e6

68743654 has 16 divisors (see below), whose sum is σ = 118137600. Its totient is φ = 29388744.

The previous prime is 68743637. The next prime is 68743679. The reversal of 68743654 is 45634786.

It is a self number, because there is not a number n which added to its sum of digits gives 68743654.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7 + ... + 11725.

It is an arithmetic number, because the mean of its divisors is an integer number (7383600).

Almost surely, 268743654 is an apocalyptic number.

68743654 is a deficient number, since it is larger than the sum of its proper divisors (49393946).

68743654 is a wasteful number, since it uses less digits than its factorization.

68743654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12147.

The product of its digits is 483840, while the sum is 43.

The square root of 68743654 is about 8291.1792888587. The cubic root of 68743654 is about 409.6480302754.

The spelling of 68743654 in words is "sixty-eight million, seven hundred forty-three thousand, six hundred fifty-four".

Divisors: 1 2 7 14 419 838 2933 5866 11719 23438 82033 164066 4910261 9820522 34371827 68743654