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11968980911808 = 263269231741421
BaseRepresentation
bin1010111000101011111011…
…0110110000011011000000
31120101020000212012011020020
42232022332312300123000
53032044433103134213
641242250211213440
72343505335062034
oct256127666603300
946336025164206
1011968980911808
1138a501a76a828
1214138035a7280
1368a89316622b
142d54320981c4
1515b519ae4923
hexae2bedb06c0

11968980911808 has 56 divisors (see below), whose sum is σ = 31785653441520. Its totient is φ = 3974828835840.

The previous prime is 11968980911759. The next prime is 11968980911869. The reversal of 11968980911808 is 80811908986911.

11968980911808 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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115819063 + ... + 115922358.

Almost surely, 211968980911808 is an apocalyptic number.

It is an amenable number.

11968980911808 is an abundant number, since it is smaller than the sum of its proper divisors (19816672529712).

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

11968980911808 is a wasteful number, since it uses less digits than its factorization.

11968980911808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231741705 (or 231741695 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 69.

The spelling of 11968980911808 in words is "eleven trillion, nine hundred sixty-eight billion, nine hundred eighty million, nine hundred eleven thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 192 269 538 807 1076 1614 2152 3228 4304 6456 8608 12912 17216 25824 51648 231741421 463482842 695224263 926965684 1390448526 1853931368 2780897052 3707862736 5561794104 7415725472 11123588208 14831450944 22247176416 44494352832 62338442249 124676884498 187015326747 249353768996 374030653494 498707537992 748061306988 997415075984 1496122613976 1994830151968 2992245227952 3989660303936 5984490455904 11968980911808