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13531110036 = 2232361811991
BaseRepresentation
bin11001001101000010…
…00101101010010100
31021221000011121110120
430212201011222110
5210202431010121
610114402351540
7656212352253
oct144641055224
937830147416
1013531110036
115813a60274
12275765b5b0
13137842a0b2
149250dc79a
15542db2bc6
hex326845a94

13531110036 has 96 divisors (see below), whose sum is σ = 33560518656. Its totient is φ = 4234032000.

The previous prime is 13531110023. The next prime is 13531110083. The reversal of 13531110036 is 63001113531.

It is a junction number, because it is equal to n+sod(n) for n = 13531109988 and 13531110015.

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, 13653501 + ... + 13654491.

It is an arithmetic number, because the mean of its divisors is an integer number (349588736).

Almost surely, 213531110036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13531110036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16780259328).

13531110036 is an abundant number, since it is smaller than the sum of its proper divisors (20029408620).

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

13531110036 is a wasteful number, since it uses less digits than its factorization.

13531110036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1893 (or 1891 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 24.

Adding to 13531110036 its reverse (63001113531), we get a palindrome (76532223567).

The spelling of 13531110036 in words is "thirteen billion, five hundred thirty-one million, one hundred ten thousand, thirty-six".

Divisors: 1 2 3 4 6 12 23 46 61 69 92 122 138 183 244 276 366 732 811 991 1403 1622 1982 2433 2806 2973 3244 3964 4209 4866 5612 5946 8418 9732 11892 16836 18653 22793 37306 45586 49471 55959 60451 68379 74612 91172 98942 111918 120902 136758 148413 181353 197884 223836 241804 273516 296826 362706 593652 725412 803701 1137833 1390373 1607402 2275666 2411103 2780746 3214804 3413499 4171119 4551332 4822206 5561492 6826998 8342238 9644412 13653996 16684476 18485123 36970246 49025761 55455369 73940492 98051522 110910738 147077283 196103044 221821476 294154566 588309132 1127592503 2255185006 3382777509 4510370012 6765555018 13531110036