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68818882 = 2113128131
BaseRepresentation
bin1000001101000…
…01011111000010
311210111100202111
410012201133002
5120104201012
610455005534
71463644066
oct406413702
9153440674
1068818882
1135934710
121b0698aa
1311347042
1491d5aa6
156095ba7
hex41a17c2

68818882 has 8 divisors (see below), whose sum is σ = 112612752. Its totient is φ = 31281300.

The previous prime is 68818861. The next prime is 68818901. The reversal of 68818882 is 28881886.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1564044 + ... + 1564087.

It is an arithmetic number, because the mean of its divisors is an integer number (14076594).

Almost surely, 268818882 is an apocalyptic number.

68818882 is a deficient number, since it is larger than the sum of its proper divisors (43793870).

68818882 is a wasteful number, since it uses less digits than its factorization.

68818882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3128144.

The product of its digits is 393216, while the sum is 49.

The square root of 68818882 is about 8295.7146768678. The cubic root of 68818882 is about 409.7974053608.

The spelling of 68818882 in words is "sixty-eight million, eight hundred eighteen thousand, eight hundred eighty-two".

Divisors: 1 2 11 22 3128131 6256262 34409441 68818882