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13506901983 = 332773115807
BaseRepresentation
bin11001001010001001…
…01111011111011111
31021212022121201021000
430211010233133133
5210130231330413
610112135441343
7655466525661
oct144504573737
937768551230
1013506901983
115801326413
12274b526253
1313734024c3
14921bda531
15540bd0073
hex32512f7df

13506901983 has 32 divisors (see below), whose sum is σ = 20150507520. Its totient is φ = 8941704480.

The previous prime is 13506901981. The next prime is 13506902029. The reversal of 13506901983 is 38910960531.

It is not a de Polignac number, because 13506901983 - 21 = 13506901981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13506901981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2323066 + ... + 2328872.

It is an arithmetic number, because the mean of its divisors is an integer number (629703360).

Almost surely, 213506901983 is an apocalyptic number.

13506901983 is a deficient number, since it is larger than the sum of its proper divisors (6643605537).

13506901983 is a wasteful number, since it uses less digits than its factorization.

13506901983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6404 (or 6398 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The spelling of 13506901983 in words is "thirteen billion, five hundred six million, nine hundred one thousand, nine hundred eighty-three".

Divisors: 1 3 9 27 277 311 831 933 2493 2799 5807 7479 8397 17421 52263 86147 156789 258441 775323 1608539 1805977 2325969 4825617 5417931 14476851 16253793 43430553 48761379 500255629 1500766887 4502300661 13506901983