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83145067686 = 23219534587061
BaseRepresentation
bin100110101101111010…
…1010000110010100110
321221121112010001210100
41031123311100302212
52330240114131221
6102110223204530
76002261262102
oct1153365206246
9257545101710
1083145067686
113229724aa7a
1214145146746
137ac08ac205
14404a744902
15226966a926
hex135bd50ca6

83145067686 has 48 divisors (see below), whose sum is σ = 193207051440. Its totient is φ = 25760928960.

The previous prime is 83145067679. The next prime is 83145067711. The reversal of 83145067686 is 68676054138.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2275405 + ... + 2311656.

It is an arithmetic number, because the mean of its divisors is an integer number (4025146905).

Almost surely, 283145067686 is an apocalyptic number.

83145067686 is an abundant number, since it is smaller than the sum of its proper divisors (110061983754).

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

83145067686 is a wasteful number, since it uses less digits than its factorization.

83145067686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4587141 (or 4587138 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 83145067686 in words is "eighty-three billion, one hundred forty-five million, sixty-seven thousand, six hundred eighty-six".

Divisors: 1 2 3 6 9 18 19 38 53 57 106 114 159 171 318 342 477 954 1007 2014 3021 6042 9063 18126 4587061 9174122 13761183 27522366 41283549 82567098 87154159 174308318 243114233 261462477 486228466 522924954 729342699 784387431 1458685398 1568774862 2188028097 4376056194 4619170427 9238340854 13857511281 27715022562 41572533843 83145067686