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13531201110 = 2325739754101
BaseRepresentation
bin11001001101000010…
…11011111001010110
31021221000100020101200
430212201123321112
5210202441413420
610114404333330
7656213211630
oct144641337126
937830306350
1013531201110
115814012739
1227576a4246
13137845c69b
14925123a50
15542dceb90
hex32685be56

13531201110 has 96 divisors (see below), whose sum is σ = 40309019712. Its totient is φ = 3084998400.

The previous prime is 13531201097. The next prime is 13531201111. The reversal of 13531201110 is 1110213531.

13531201110 is a `hidden beast` number, since 1 + 3 + 531 + 20 + 1 + 110 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531201111) 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, 223060 + ... + 277160.

It is an arithmetic number, because the mean of its divisors is an integer number (419885622).

Almost surely, 213531201110 is an apocalyptic number.

13531201110 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 13531201110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20154509856).

13531201110 is an abundant number, since it is smaller than the sum of its proper divisors (26777818602).

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

13531201110 is a wasteful number, since it uses less digits than its factorization.

13531201110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54518 (or 54515 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

Adding to 13531201110 its reverse (1110213531), we get a palindrome (14641414641).

The spelling of 13531201110 in words is "thirteen billion, five hundred thirty-one million, two hundred one thousand, one hundred ten".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 63 70 90 105 126 210 315 397 630 794 1191 1985 2382 2779 3573 3970 5558 5955 7146 8337 11910 13895 16674 17865 25011 27790 35730 41685 50022 54101 83370 108202 125055 162303 250110 270505 324606 378707 486909 541010 757414 811515 973818 1136121 1623030 1893535 2272242 2434545 3408363 3787070 4869090 5680605 6816726 11361210 17041815 21478097 34083630 42956194 64434291 107390485 128868582 150346679 193302873 214780970 300693358 322171455 386605746 451040037 644342910 751733395 902080074 966514365 1353120111 1503466790 1933028730 2255200185 2706240222 4510400370 6765600555 13531201110