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68454886 = 2178632333
BaseRepresentation
bin1000001010010…
…00100111100110
311202210212110011
410011020213212
5120011024021
610443120434
71460566633
oct405104746
9152725404
1068454886
1135706195
121ab1311a
131124a466
14913d18a
156022de1
hex41489e6

68454886 has 16 divisors (see below), whose sum is σ = 108895104. Its totient is φ = 32162944.

The previous prime is 68454829. The next prime is 68454887. The reversal of 68454886 is 68845486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68454887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28176 + ... + 30508.

It is an arithmetic number, because the mean of its divisors is an integer number (6805944).

Almost surely, 268454886 is an apocalyptic number.

68454886 is a deficient number, since it is larger than the sum of its proper divisors (40440218).

68454886 is a wasteful number, since it uses less digits than its factorization.

68454886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3215.

The product of its digits is 1474560, while the sum is 49.

The square root of 68454886 is about 8273.7467933216. The cubic root of 68454886 is about 409.0736292978.

The spelling of 68454886 in words is "sixty-eight million, four hundred fifty-four thousand, eight hundred eighty-six".

Divisors: 1 2 17 34 863 1726 2333 4666 14671 29342 39661 79322 2013379 4026758 34227443 68454886