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12960189391552 = 2613174312125993
BaseRepresentation
bin1011110010011000011101…
…1111000010001011000000
31200212222111212211002010221
42330212013133002023000
53144314431441012202
643321455005032424
72505225401122504
oct274460737021300
950788455732127
1012960189391552
1141474270493a7
121553931255714
137301a9c17680
1432b3c2a78304
151771ce611037
hexbc9877c22c0

12960189391552 has 112 divisors (see below), whose sum is σ = 29393414773632. Its totient is φ = 5616700784640.

The previous prime is 12960189391531. The next prime is 12960189391571. The reversal of 12960189391552 is 25519398106921.

It is a super-3 number, since 3×129601893915523 (a number of 40 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5033068 + ... + 7159060.

It is an arithmetic number, because the mean of its divisors is an integer number (262441203336).

Almost surely, 212960189391552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12960189391552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14696707386816).

12960189391552 is an abundant number, since it is smaller than the sum of its proper divisors (16433225382080).

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

12960189391552 is a wasteful number, since it uses less digits than its factorization.

12960189391552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2126466 (or 2126456 counting only the distinct ones).

The product of its (nonzero) digits is 10497600, while the sum is 61.

The spelling of 12960189391552 in words is "twelve trillion, nine hundred sixty billion, one hundred eighty-nine million, three hundred ninety-one thousand, five hundred fifty-two".

Divisors: 1 2 4 8 13 16 17 26 32 34 52 64 68 104 136 208 221 272 416 431 442 544 832 862 884 1088 1724 1768 3448 3536 5603 6896 7072 7327 11206 13792 14144 14654 22412 27584 29308 44824 58616 89648 95251 117232 179296 190502 234464 358592 381004 468928 762008 1524016 2125993 3048032 4251986 6096064 8503972 17007944 27637909 34015888 36141881 55275818 68031776 72283762 110551636 136063552 144567524 221103272 289135048 442206544 469844453 578270096 884413088 916302983 939688906 1156540192 1768826176 1832605966 1879377812 2313080384 3665211932 3758755624 7330423864 7517511248 11911938779 14660847728 15035022496 15577150711 23823877558 29321695456 30070044992 31154301422 47647755116 58643390912 62308602844 95295510232 124617205688 190591020464 202502959243 249234411376 381182040928 405005918486 498468822752 762364081856 810011836972 996937645504 1620023673944 3240047347888 6480094695776 12960189391552