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13631013305 = 57213371031123
BaseRepresentation
bin11001011000111100…
…01100000110111001
31022011222011012222122
430230132030012321
5210404014411210
610132331531025
7661534462400
oct145436140671
938158135878
1013631013305
115865396058
122784bb9a75
131393038860
149344a6637
1554ba48b55
hex32c78c1b9

13631013305 has 96 divisors (see below), whose sum is σ = 21268525824. Its totient is φ = 8305887744.

The previous prime is 13631013293. The next prime is 13631013401. The reversal of 13631013305 is 50331013631.

It is a happy number.

13631013305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13631013305 - 26 = 13631013241 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12137474 + ... + 12138596.

It is an arithmetic number, because the mean of its divisors is an integer number (221547144).

Almost surely, 213631013305 is an apocalyptic number.

It is an amenable number.

13631013305 is a deficient number, since it is larger than the sum of its proper divisors (7637512519).

13631013305 is a wasteful number, since it uses less digits than its factorization.

13631013305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295 (or 1288 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 26.

Adding to 13631013305 its reverse (50331013631), we get a palindrome (63962026936).

The spelling of 13631013305 in words is "thirteen billion, six hundred thirty-one million, thirteen thousand, three hundred five".

Divisors: 1 5 7 13 35 37 49 65 91 103 185 245 259 455 481 515 637 721 1123 1295 1339 1813 2405 3185 3367 3605 3811 5047 5615 6695 7861 9065 9373 14599 16835 19055 23569 25235 26677 39305 41551 46865 49543 55027 65611 72995 102193 115669 117845 133385 186739 207755 247715 275135 290857 328055 346801 510965 540163 578345 715351 809683 933695 1454285 1503697 1734005 2035999 2427607 2700815 3576755 3781141 4048415 4279753 5667781 7518485 10179995 10525879 12138035 18905705 21398765 26467987 28338905 29958271 52629395 55636789 73681153 132339935 149791355 209707897 278183945 368405765 389457523 1048539485 1947287615 2726202661 13631013305