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12576381320 = 2353137327191
BaseRepresentation
bin10111011011001110…
…00101100110001000
31012110110200100212202
423231213011212020
5201224023200240
65435535255332
7623440322516
oct135547054610
935413610782
1012576381320
115374048478
12252b97a548
1312556b0b69
148743b74b6
154d9175315
hex2ed9c5988

12576381320 has 64 divisors (see below), whose sum is σ = 29289047040. Its totient is φ = 4855046400.

The previous prime is 12576381317. The next prime is 12576381353. The reversal of 12576381320 is 2318367521.

12576381320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 448925 + ... + 476115.

It is an arithmetic number, because the mean of its divisors is an integer number (457641360).

Almost surely, 212576381320 is an apocalyptic number.

12576381320 is a gapful number since it is divisible by the number (10) 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 12576381320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14644523520).

12576381320 is an abundant number, since it is smaller than the sum of its proper divisors (16712665720).

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

12576381320 is a wasteful number, since it uses less digits than its factorization.

12576381320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27606 (or 27602 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 12576381320 in words is "twelve billion, five hundred seventy-six million, three hundred eighty-one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 31 40 62 124 155 248 310 373 620 746 1240 1492 1865 2984 3730 7460 11563 14920 23126 27191 46252 54382 57815 92504 108764 115630 135955 217528 231260 271910 462520 543820 842921 1087640 1685842 3371684 4214605 6743368 8429210 10142243 16858420 20284486 33716840 40568972 50711215 81137944 101422430 202844860 314409533 405689720 628819066 1257638132 1572047665 2515276264 3144095330 6288190660 12576381320