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68084699406 = 23172331936181
BaseRepresentation
bin111111011010001010…
…100001000100001110
320111201221101002101120
4333122022201010032
52103414140340111
651135551221410
74630126252623
oct773212410416
9214657332346
1068084699406
1126969046419
1211241517866
1365606b76a9
14341c4c834a
151b873ce406
hexfda2a110e

68084699406 has 64 divisors (see below), whose sum is σ = 155301359616. Its totient is φ = 19772121600.

The previous prime is 68084699401. The next prime is 68084699411. The reversal of 68084699406 is 60499648086.

It is an interprime number because it is at equal distance from previous prime (68084699401) and next prime (68084699411).

It is a self number, because there is not a number n which added to its sum of digits gives 68084699406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68084699401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 395365 + ... + 540816.

It is an arithmetic number, because the mean of its divisors is an integer number (2426583744).

Almost surely, 268084699406 is an apocalyptic number.

68084699406 is an abundant number, since it is smaller than the sum of its proper divisors (87216660210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68084699406 is a wasteful number, since it uses less digits than its factorization.

68084699406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936257.

The product of its (nonzero) digits is 17915904, while the sum is 60.

The spelling of 68084699406 in words is "sixty-eight billion, eighty-four million, six hundred ninety-nine thousand, four hundred six".

Divisors: 1 2 3 6 17 23 31 34 46 51 62 69 93 102 138 186 391 527 713 782 1054 1173 1426 1581 2139 2346 3162 4278 12121 24242 36363 72726 936181 1872362 2808543 5617086 15915077 21532163 29021611 31830154 43064326 47745231 58043222 64596489 87064833 95490462 129192978 174129666 366046771 493367387 667497053 732093542 986734774 1098140313 1334994106 1480102161 2002491159 2196280626 2960204322 4004982318 11347449901 22694899802 34042349703 68084699406