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13212254253212 = 22718156315433001
BaseRepresentation
bin1100000001000011011110…
…1110001011000010011100
31201210002010201022202221222
43000100313232023002130
53212432144042100322
644033343101512512
72532360656110220
oct300206756130234
951702121282858
1013212254253212
1142343160a0793
121594759272738
1374abaaa106a1
143396957ca780
1517da33850e42
hexc0437b8b09c

13212254253212 has 96 divisors (see below), whose sum is σ = 26643820729344. Its totient is φ = 5615593920000.

The previous prime is 13212254253199. The next prime is 13212254253223. The reversal of 13212254253212 is 21235245221231.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4402615712 + ... + 4402618712.

It is an arithmetic number, because the mean of its divisors is an integer number (277539799264).

Almost surely, 213212254253212 is an apocalyptic number.

It is an amenable number.

13212254253212 is an abundant number, since it is smaller than the sum of its proper divisors (13431566476132).

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

13212254253212 is a wasteful number, since it uses less digits than its factorization.

13212254253212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5299 (or 5297 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

Adding to 13212254253212 its reverse (21235245221231), we get a palindrome (34447499474443).

The spelling of 13212254253212 in words is "thirteen trillion, two hundred twelve billion, two hundred fifty-four million, two hundred fifty-three thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 181 362 563 724 1126 1267 1543 2252 2534 3001 3086 3941 5068 6002 6172 7882 10801 12004 15764 21007 21602 42014 43204 84028 101903 203806 279283 407612 543181 558566 713321 868709 1086362 1117132 1426642 1689563 1737418 1954981 2172724 2853284 3379126 3474836 3802267 3909962 4630543 6080963 6758252 7604534 7819924 9261086 11826941 12161926 15209068 18522172 23653882 24323852 32413801 47307764 64827602 129655204 157236329 305810903 314472658 611621806 628945316 838128283 1100654303 1223243612 1676256566 2140676321 2201308606 2606995709 3352513132 4281352642 4402617212 5213991418 5866897981 8562705284 10427982836 11733795962 18248969963 23467591924 36497939926 72995879852 471866223329 943732446658 1887464893316 3303063563303 6606127126606 13212254253212