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13111120224 = 2532257307577
BaseRepresentation
bin11000011010111101…
…11101000101100000
31020211201212220202100
430031132331011200
5203322421321344
610005000450400
7642622453206
oct141536750540
936751786670
1013111120224
115618981754
12265aa79a00
13130c409c07
148c5413076
1551b0a1569
hex30d7bd160

13111120224 has 144 divisors (see below), whose sum is σ = 37616827248. Its totient is φ = 4331667456.

The previous prime is 13111120207. The next prime is 13111120229. The reversal of 13111120224 is 42202111131.

13111120224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a junction number, because it is equal to n+sod(n) for n = 13111120197 and 13111120206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13111120229) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 22722624 + ... + 22723200.

It is an arithmetic number, because the mean of its divisors is an integer number (261227967).

Almost surely, 213111120224 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 13111120224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18808413624).

13111120224 is an abundant number, since it is smaller than the sum of its proper divisors (24505707024).

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

13111120224 is a wasteful number, since it uses less digits than its factorization.

13111120224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157 (or 1146 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 13111120224 its reverse (42202111131), we get a palindrome (55313231355).

The spelling of 13111120224 in words is "thirteen billion, one hundred eleven million, one hundred twenty thousand, two hundred twenty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 257 288 307 514 577 614 771 921 1028 1154 1228 1542 1731 1842 2056 2308 2313 2456 2763 3084 3462 3684 4112 4616 4626 4912 5193 5526 6168 6924 7368 8224 9232 9252 9824 10386 11052 12336 13848 14736 18464 18504 20772 22104 24672 27696 29472 37008 41544 44208 55392 74016 78899 83088 88416 148289 157798 166176 177139 236697 296578 315596 354278 444867 473394 531417 593156 631192 708556 710091 889734 946788 1062834 1186312 1262384 1334601 1417112 1420182 1594251 1779468 1893576 2125668 2372624 2524768 2669202 2834224 2840364 3188502 3558936 3787152 4251336 4745248 5338404 5668448 5680728 6377004 7117872 7574304 8502672 10676808 11361456 12754008 14235744 17005344 21353616 22722912 25508016 42707232 45524723 51016032 91049446 136574169 182098892 273148338 364197784 409722507 546296676 728395568 819445014 1092593352 1456791136 1638890028 2185186704 3277780056 4370373408 6555560112 13111120224