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13155204345312 = 253868115785437
BaseRepresentation
bin1011111101101110111101…
…0010000010110111100000
31201120121212210212011210010
42333123233102002313200
53211013324303022222
643551230100204520
72525301140643141
oct277335722026740
951517783764703
1013155204345312
1142120aa996577
121585697399740
137456b8512533
14336a02a6bac8
1517c2e50d480c
hexbf6ef482de0

13155204345312 has 48 divisors (see below), whose sum is σ = 34536391524432. Its totient is φ = 4384562703360.

The previous prime is 13155204345287. The next prime is 13155204345341. The reversal of 13155204345312 is 21354340255131.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7059343 + ... + 8726094.

It is an arithmetic number, because the mean of its divisors is an integer number (719508156759).

Almost surely, 213155204345312 is an apocalyptic number.

13155204345312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13155204345312 is an abundant number, since it is smaller than the sum of its proper divisors (21381187179120).

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

13155204345312 is a wasteful number, since it uses less digits than its factorization.

13155204345312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15794131 (or 15794123 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 13155204345312 in words is "thirteen trillion, one hundred fifty-five billion, two hundred four million, three hundred forty-five thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 8681 17362 26043 34724 52086 69448 104172 138896 208344 277792 416688 833376 15785437 31570874 47356311 63141748 94712622 126283496 189425244 252566992 378850488 505133984 757700976 1515401952 137033378597 274066757194 411100135791 548133514388 822200271582 1096267028776 1644400543164 2192534057552 3288801086328 4385068115104 6577602172656 13155204345312