Search a number
-
+
68888600688886 = 211171731815882353
BaseRepresentation
bin11111010100111011000001…
…00100101011100011110110
3100000220200112000201222221221
433222131200210223203312
533012132323234021021
6402302553011100554
720340015513250216
oct1752354044534366
9300820460658857
1068888600688886
111aa4a545191a60
1278870a4ba175a
132c59223374234
141302324466246
157e6e3d3cb241
hex3ea76092b8f6

68888600688886 has 64 divisors (see below), whose sum is σ = 120710986433856. Its totient is φ = 29138818867200.

The previous prime is 68888600688871. The next prime is 68888600688907.

It is a happy number.

68888600688886 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 68888600688797 and 68888600688806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8769886 + ... + 14652238.

It is an arithmetic number, because the mean of its divisors is an integer number (1886109163029).

Almost surely, 268888600688886 is an apocalyptic number.

68888600688886 is a deficient number, since it is larger than the sum of its proper divisors (51822385744970).

68888600688886 is a wasteful number, since it uses less digits than its factorization.

68888600688886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5882737.

The product of its (nonzero) digits is 21743271936, while the sum is 88.

It can be divided in two parts, 68888600 and 688886, that multiplied together give a square (47456392099600 = 68888602).

The spelling of 68888600688886 in words is "sixty-eight trillion, eight hundred eighty-eight billion, six hundred million, six hundred eighty-eight thousand, eight hundred eighty-six".

Divisors: 1 2 11 17 22 34 173 181 187 346 362 374 1903 1991 2941 3077 3806 3982 5882 6154 31313 32351 33847 62626 64702 67694 344443 532321 688886 1064642 5855531 5882353 11711062 11764706 64705883 100000001 129411766 200000002 1017647069 1064705893 1100000011 2035294138 2129411786 2200000022 11194117759 11711764823 17300000173 18100000181 22388235518 23423529646 34600000346 36200000362 184194119489 190300001903 199100001991 368388238978 380600003806 398200003982 2026135314379 3131300031313 4052270628758 6262600062626 34444300344443 68888600688886