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12480392444 = 2213317139601
BaseRepresentation
bin10111001111110001…
…11010110011111100
31012012210001121220012
423213320322303330
5201024440024234
65422230042352
7621163404542
oct134770726374
935183047805
1012480392444
115324946623
1225037a93b8
13123b843000
1486574bd92
154d0a140ce
hex2e7e3acfc

12480392444 has 96 divisors (see below), whose sum is σ = 25273886400. Its totient is φ = 5373388800.

The previous prime is 12480392443. The next prime is 12480392447. The reversal of 12480392444 is 44429308421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12480392443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20765744 + ... + 20766344.

It is an arithmetic number, because the mean of its divisors is an integer number (263269650).

Almost surely, 212480392444 is an apocalyptic number.

It is an amenable number.

12480392444 is an abundant number, since it is smaller than the sum of its proper divisors (12793493956).

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

12480392444 is a wasteful number, since it uses less digits than its factorization.

12480392444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800 (or 772 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 41.

The spelling of 12480392444 in words is "twelve billion, four hundred eighty million, three hundred ninety-two thousand, four hundred forty-four".

Divisors: 1 2 4 13 17 26 34 52 68 139 169 221 278 338 442 556 601 676 884 1202 1807 2197 2363 2404 2873 3614 4394 4726 5746 7228 7813 8788 9452 10217 11492 15626 20434 23491 30719 31252 37349 40868 46982 61438 74698 83539 93964 101569 122876 132821 149396 167078 203138 265642 305383 334156 399347 406276 531284 610766 798694 1086007 1221532 1320397 1420163 1597388 1726673 2172014 2640794 2840326 3453346 4344028 5191511 5281588 5680652 6906692 10383022 14118091 18462119 20766044 22446749 28236182 36924238 44893498 56472364 73848476 89786996 183535183 240007547 367070366 480015094 734140732 960030188 3120098111 6240196222 12480392444