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13208532806 = 273172334861
BaseRepresentation
bin11000100110100101…
…00011011101000110
31021002112011222200202
430103102203131012
5204022341022211
610022400410502
7645214451000
oct142322433506
937075158622
1013208532806
115668966217
122687616a32
131326655ab1
148d432d370
155248e453b
hex3134a3746

13208532806 has 64 divisors (see below), whose sum is σ = 24574492800. Its totient is φ = 5303854080.

The previous prime is 13208532797. The next prime is 13208532829. The reversal of 13208532806 is 60823580231.

It is a self number, because there is not a number n which added to its sum of digits gives 13208532806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2714816 + ... + 2719676.

It is an arithmetic number, because the mean of its divisors is an integer number (383976450).

Almost surely, 213208532806 is an apocalyptic number.

13208532806 is a deficient number, since it is larger than the sum of its proper divisors (11365959994).

13208532806 is a wasteful number, since it uses less digits than its factorization.

13208532806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5134 (or 5120 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 13208532806 in words is "thirteen billion, two hundred eight million, five hundred thirty-two thousand, eight hundred six".

Divisors: 1 2 7 14 17 34 49 98 119 233 238 343 466 686 833 1631 1666 3262 3961 4861 5831 7922 9722 11417 11662 22834 27727 34027 55454 68054 79919 82637 159838 165274 194089 238189 388178 476378 578459 1132613 1156918 1358623 1667323 2265226 2717246 3334646 4049213 7928291 8098426 15856582 19254421 28344491 38508842 55498037 56688982 110996074 134780947 269561894 388486259 776972518 943466629 1886933258 6604266403 13208532806