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13205132310 = 23529314211163
BaseRepresentation
bin11000100110001011…
…00101010000010110
31021002021210020002110
430103011211100112
5204021003213220
610022155451450
7645143526006
oct142305452026
937067706073
1013205132310
115666a53397
122686456b86
131325a35076
148d3ac6006
15524471be0
hex313165416

13205132310 has 128 divisors (see below), whose sum is σ = 33952296960. Its totient is φ = 3279628800.

The previous prime is 13205132293. The next prime is 13205132333. The reversal of 13205132310 is 1323150231.

It is a super-2 number, since 2×132051323102 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11353789 + ... + 11354951.

It is an arithmetic number, because the mean of its divisors is an integer number (265252320).

Almost surely, 213205132310 is an apocalyptic number.

13205132310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13205132310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16976148480).

13205132310 is an abundant number, since it is smaller than the sum of its proper divisors (20747164650).

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

13205132310 is a wasteful number, since it uses less digits than its factorization.

13205132310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1654.

The product of its (nonzero) digits is 540, while the sum is 21.

Adding to 13205132310 its reverse (1323150231), we get a palindrome (14528282541).

The spelling of 13205132310 in words is "thirteen billion, two hundred five million, one hundred thirty-two thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 15 29 30 31 58 62 87 93 145 155 174 186 290 310 421 435 465 842 870 899 930 1163 1263 1798 2105 2326 2526 2697 3489 4210 4495 5394 5815 6315 6978 8990 11630 12209 12630 13051 13485 17445 24418 26102 26970 33727 34890 36053 36627 39153 61045 65255 67454 72106 73254 78306 101181 108159 122090 130510 168635 180265 183135 195765 202362 216318 337270 360530 366270 378479 391530 489623 505905 540795 756958 979246 1011810 1045537 1081590 1135437 1468869 1892395 2091074 2270874 2448115 2937738 3136611 3784790 4896230 5227685 5677185 6273222 7344345 10455370 11354370 14199067 14688690 15178313 15683055 28398134 30356626 31366110 42597201 45534939 70995335 75891565 85194402 91069878 141990670 151783130 212986005 227674695 425972010 440171077 455349390 880342154 1320513231 2200855385 2641026462 4401710770 6602566155 13205132310