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83287109903 = 17299716710429
BaseRepresentation
bin100110110010001001…
…1000111000100001111
321221222102101120002012
41031210103013010033
52331033000004103
6102132255451435
76005634516254
oct1154423070417
9257872346065
1083287109903
113235a447438
1214184826b7b
137b14152c6a
14406155b42b
152276d772d8
hex13644c710f

83287109903 has 32 divisors (see below), whose sum is σ = 92728540800. Its totient is φ = 74448912384.

The previous prime is 83287109879. The next prime is 83287109923. The reversal of 83287109903 is 30990178238.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 83287109903 - 216 = 83287044367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83287109923) 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, 7980893 + ... + 7991321.

It is an arithmetic number, because the mean of its divisors is an integer number (2897766900).

Almost surely, 283287109903 is an apocalyptic number.

83287109903 is a deficient number, since it is larger than the sum of its proper divisors (9441430897).

83287109903 is a wasteful number, since it uses less digits than its factorization.

83287109903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10739.

The product of its (nonzero) digits is 653184, while the sum is 50.

The spelling of 83287109903 in words is "eighty-three billion, two hundred eighty-seven million, one hundred nine thousand, nine hundred three".

Divisors: 1 17 29 97 167 493 1649 2813 2839 4843 10429 16199 47821 82331 177293 275383 302441 469771 1011613 1741643 5141497 7986107 17197421 29336777 29607931 50507647 168939371 498725209 858629999 2871969307 4899241759 83287109903