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12104847761513 = 132491737369753
BaseRepresentation
bin1011000000100110000100…
…1001101010000001101001
31120212012201122122020122212
42300021201021222001221
53041311212011332023
641424520145254505
72356355261203343
oct260114111520151
946765648566585
1012104847761513
113947700a96981
121436001034435
1369a636657160
142dbc407d2293
1515ed1ca3de78
hexb026126a069

12104847761513 has 8 divisors (see below), whose sum is σ = 13036513422408. Its totient is φ = 11173256889984.

The previous prime is 12104847761467. The next prime is 12104847761543. The reversal of 12104847761513 is 31516774840121.

It can be written as a sum of positive squares in 4 ways, for example, as 101027351104 + 12003820410409 = 317848^2 + 3464653^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12104847761513 - 224 = 12104830984297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12104847761543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18360956 + ... + 19008797.

It is an arithmetic number, because the mean of its divisors is an integer number (1629564177801).

Almost surely, 212104847761513 is an apocalyptic number.

12104847761513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12104847761513 is a deficient number, since it is larger than the sum of its proper divisors (931665660895).

12104847761513 is a wasteful number, since it uses less digits than its factorization.

12104847761513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37394683.

The product of its (nonzero) digits is 1128960, while the sum is 50.

The spelling of 12104847761513 in words is "twelve trillion, one hundred four billion, eight hundred forty-seven million, seven hundred sixty-one thousand, five hundred thirteen".

Divisors: 1 13 24917 323921 37369753 485806789 931142135501 12104847761513