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86668086668 = 22471014619901
BaseRepresentation
bin101000010110111010…
…0100000110110001100
322021201001021222021212
41100231310200312030
52404444012233133
6103451553513552
76155500403342
oct1205564406614
9267631258255
1086668086668
113383496a309
1214968b728b8
138232748127
1442a25b5992
1523c3ac3148
hex142dd20d8c

86668086668 has 48 divisors (see below), whose sum is σ = 156784940928. Its totient is φ = 41896800000.

The previous prime is 86668086643. The next prime is 86668086683.

86668086668 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×866680866682 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 86668086598 and 86668086607.

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, 8748518 + ... + 8758418.

It is an arithmetic number, because the mean of its divisors is an integer number (3266352936).

Almost surely, 286668086668 is an apocalyptic number.

It is an amenable number.

86668086668 is a deficient number, since it is larger than the sum of its proper divisors (70116854260).

86668086668 is a wasteful number, since it uses less digits than its factorization.

86668086668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10514 (or 10512 counting only the distinct ones).

The product of its (nonzero) digits is 191102976, while the sum is 68.

The spelling of 86668086668 in words is "eighty-six billion, six hundred sixty-eight million, eighty-six thousand, six hundred sixty-eight".

Divisors: 1 2 4 47 94 101 188 202 404 461 922 1844 4747 9494 9901 18988 19802 21667 39604 43334 46561 86668 93122 186244 465347 930694 1000001 1861388 2000002 2188367 4000004 4376734 4564361 8753468 9128722 18257444 47000047 94000094 188000188 214524967 429049934 461000461 858099868 922000922 1844001844 21667021667 43334043334 86668086668