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13131112304112 = 24311101246232979
BaseRepresentation
bin1011111100010101001101…
…0010001100110111110000
31201111022200210102200021220
42333011103102030313300
53210120004222212422
643532203312145040
72523456126656025
oct277052322146760
951438623380256
1013131112304112
114202967628420
121580a92b38180
1374334912b15a
1433579911354c
1517b884eb1e5c
hexbf15348cdf0

13131112304112 has 80 divisors (see below), whose sum is σ = 37372256772480. Its totient is φ = 3939727648000.

The previous prime is 13131112304071. The next prime is 13131112304147. The reversal of 13131112304112 is 21140321113131.

It is a super-3 number, since 3×131311123041123 (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123063162 + ... + 123169817.

It is an arithmetic number, because the mean of its divisors is an integer number (467153209656).

Almost surely, 213131112304112 is an apocalyptic number.

13131112304112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13131112304112 is an abundant number, since it is smaller than the sum of its proper divisors (24241144468368).

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

13131112304112 is a wasteful number, since it uses less digits than its factorization.

13131112304112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246233102 (or 246233096 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 13131112304112 its reverse (21140321113131), we get a palindrome (34271433417243).

The spelling of 13131112304112 in words is "thirteen trillion, one hundred thirty-one billion, one hundred twelve million, three hundred four thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 33 44 48 66 88 101 132 176 202 264 303 404 528 606 808 1111 1212 1616 2222 2424 3333 4444 4848 6666 8888 13332 17776 26664 53328 246232979 492465958 738698937 984931916 1477397874 1969863832 2708562769 2954795748 3939727664 5417125538 5909591496 8125688307 10834251076 11819182992 16251376614 21668502152 24869530879 32502753228 43337004304 49739061758 65005506456 74608592637 99478123516 130011012912 149217185274 198956247032 273564839669 298434370548 397912494064 547129679338 596868741096 820694519007 1094259358676 1193737482192 1641389038014 2188518717352 3282778076028 4377037434704 6565556152056 13131112304112