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13506901982 = 2717191311512
BaseRepresentation
bin11001001010001001…
…01111011111011110
31021212022121201020222
430211010233133132
5210130231330412
610112135441342
7655466525660
oct144504573736
937768551228
1013506901982
115801326412
12274b526252
1313734024c2
14921bda530
15540bd0072
hex32512f7de

13506901982 has 96 divisors (see below), whose sum is σ = 26177437440. Its totient is φ = 5088096000.

The previous prime is 13506901981. The next prime is 13506902029. The reversal of 13506901982 is 28910960531.

It is a happy number.

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 47 ways as a sum of consecutive naturals, for example, 89449607 + ... + 89449757.

It is an arithmetic number, because the mean of its divisors is an integer number (272681640).

Almost surely, 213506901982 is an apocalyptic number.

13506901982 is a deficient number, since it is larger than the sum of its proper divisors (12670535458).

13506901982 is a wasteful number, since it uses less digits than its factorization.

13506901982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478 (or 327 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 44.

The spelling of 13506901982 in words is "thirteen billion, five hundred six million, nine hundred one thousand, nine hundred eighty-two".

Divisors: 1 2 7 14 17 19 34 38 119 131 133 151 238 262 266 302 323 646 917 1057 1834 2114 2227 2261 2489 2567 2869 4454 4522 4978 5134 5738 15589 17423 17969 19781 20083 22801 31178 34846 35938 39562 40166 42313 45602 48773 84626 97546 138467 159607 276934 296191 319214 336277 341411 375839 387617 433219 592382 672554 682822 751678 775234 866438 2353939 2630873 2713319 2986931 3032533 4707878 5261746 5426638 5973862 6065066 6389263 7364723 12778526 14729446 20908517 41817034 44724841 50777827 51553061 56751689 89449682 101555654 103106122 113503378 355444789 397261823 710889578 794523646 964778713 1929557426 6753450991 13506901982