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13286619468 = 223229311992063
BaseRepresentation
bin11000101111111000…
…11011100101001100
31021021222010012110100
430113330123211030
5204202333310333
610034230211100
7650153254623
oct142774334514
937258105410
1013286619468
1156a8a4a951
1226a97b3a90
131339896315
149008586ba
1552b6bb213
hex317f1b94c

13286619468 has 144 divisors (see below), whose sum is σ = 36062208000. Its totient is φ = 4115422080.

The previous prime is 13286619431. The next prime is 13286619469. The reversal of 13286619468 is 86491668231.

13286619468 is a `hidden beast` number, since 13 + 2 + 8 + 6 + 619 + 4 + 6 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (13286619469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6439405 + ... + 6441467.

It is an arithmetic number, because the mean of its divisors is an integer number (250432000).

Almost surely, 213286619468 is an apocalyptic number.

13286619468 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13286619468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18031104000).

13286619468 is an abundant number, since it is smaller than the sum of its proper divisors (22775588532).

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

13286619468 is a wasteful number, since it uses less digits than its factorization.

13286619468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2332 (or 2327 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The spelling of 13286619468 in words is "thirteen billion, two hundred eighty-six million, six hundred nineteen thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 29 31 36 58 62 87 93 116 124 174 186 199 261 279 348 372 398 522 558 597 796 899 1044 1116 1194 1791 1798 2063 2388 2697 3582 3596 4126 5394 5771 6169 6189 7164 8091 8252 10788 11542 12338 12378 16182 17313 18507 18567 23084 24676 24756 32364 34626 37014 37134 51939 55521 59827 63953 69252 74028 74268 103878 111042 119654 127906 178901 179481 191859 207756 222084 239308 255812 357802 358962 383718 410537 536703 538443 575577 715604 717924 767436 821074 1073406 1076886 1151154 1231611 1610109 1642148 1854637 2146812 2153772 2302308 2463222 3220218 3694833 3709274 4926444 5563911 6440436 7389666 7418548 11127822 11905573 12726647 14779332 16691733 22255644 23811146 25453294 33383466 35716719 38179941 47622292 50906588 66766932 71433438 76359882 107150157 114539823 142866876 152719764 214300314 229079646 369072763 428600628 458159292 738145526 1107218289 1476291052 2214436578 3321654867 4428873156 6643309734 13286619468