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68668222286686 = 21113969773218471
BaseRepresentation
bin11111001110100000100001…
…11111110010101101011110
3100000010121200110220012222111
433213100100333302231132
533000030004401133221
6402013425033104234
720315054363610001
oct1747202077625536
9300117613805874
1068668222286686
111a975036338650
12785044085807a
132c4150215b609
1412d57b9b1b538
157e1340d91be1
hex3e7410ff2b5e

68668222286686 has 32 divisors (see below), whose sum is σ = 113190827984640. Its totient is φ = 30983824473600.

The previous prime is 68668222286563. The next prime is 68668222286693.

68668222286686 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19726431 + ... + 22944901.

It is an arithmetic number, because the mean of its divisors is an integer number (3537213374520).

Almost surely, 268668222286686 is an apocalyptic number.

68668222286686 is a deficient number, since it is larger than the sum of its proper divisors (44522605697954).

68668222286686 is a wasteful number, since it uses less digits than its factorization.

68668222286686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3225600.

The product of its digits is 3057647616, while the sum is 76.

The spelling of 68668222286686 in words is "sixty-eight trillion, six hundred sixty-eight billion, two hundred twenty-two million, two hundred eighty-six thousand, six hundred eighty-six".

Divisors: 1 2 11 22 139 278 1529 3058 6977 13954 76747 153494 969803 1939606 3218471 6436942 10667833 21335666 35403181 70806362 447367469 894734938 4921042159 9842084318 22455272167 44910544334 247007993837 494015987674 3121282831213 6242565662426 34334111143343 68668222286686