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2113231330 = 257297173257
BaseRepresentation
bin111110111110101…
…0101100111100010
312110021102021102001
41331331111213202
513311441400310
6545405514214
7103240112200
oct17575254742
95407367361
102113231330
11994955a81
124ab87296a
13278a71452
14160932070
15c57cc93a
hex7df559e2

2113231330 has 96 divisors (see below), whose sum is σ = 4513800816. Its totient is φ = 710148096.

The previous prime is 2113231301. The next prime is 2113231333. The reversal of 2113231330 is 331323112.

It can be written as a sum of positive squares in 8 ways, for example, as 1914675049 + 198556281 = 43757^2 + 14091^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2113231298 and 2113231307.

It is not an unprimeable number, because it can be changed into a prime (2113231333) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8222562 + ... + 8222818.

Almost surely, 22113231330 is an apocalyptic number.

2113231330 is an abundant number, since it is smaller than the sum of its proper divisors (2400569486).

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

2113231330 is a wasteful number, since it uses less digits than its factorization.

2113231330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 2113231330 is about 45969.8959102585. The cubic root of 2113231330 is about 1283.2630227779.

Adding to 2113231330 its reverse (331323112), we get a palindrome (2444554442).

The spelling of 2113231330 in words is "two billion, one hundred thirteen million, two hundred thirty-one thousand, three hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 70 97 98 173 194 245 257 346 485 490 514 679 865 970 1211 1285 1358 1730 1799 2422 2570 3395 3598 4753 6055 6790 8477 8995 9506 12110 12593 16781 16954 17990 23765 24929 25186 33562 42385 44461 47530 49858 62965 83905 84770 88922 117467 124645 125930 167810 174503 222305 234934 249290 311227 349006 444610 587335 622454 822269 872515 1174670 1221521 1556135 1644538 1745030 2178589 2443042 3112270 4111345 4312717 4357178 6107605 8222690 8625434 10892945 12215210 21563585 21785890 30189019 43127170 60378038 150945095 211323133 301890190 422646266 1056615665 2113231330