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12541156053431 = 234631879626761
BaseRepresentation
bin1011011001111111011100…
…1001101101000110110111
31122101220220201122221201012
42312133313021231012313
53120433241422202211
642401154430222435
72433032352405005
oct266376711550667
948356821587635
1012541156053431
113aa57467103a5
1214a6687954a1b
136cc81a2683a5
14314dd0b3da75
1516b356c94d8b
hexb67f726d1b7

12541156053431 has 16 divisors (see below), whose sum is σ = 13121688668160. Its totient is φ = 11963589865920.

The previous prime is 12541156053421. The next prime is 12541156053467. The reversal of 12541156053431 is 13435065114521.

It is a cyclic number.

It is not a de Polignac number, because 12541156053431 - 218 = 12541155791287 is a prime.

It is a super-2 number, since 2×125411560534312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12541156053421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19696091 + ... + 20322851.

It is an arithmetic number, because the mean of its divisors is an integer number (820105541760).

Almost surely, 212541156053431 is an apocalyptic number.

12541156053431 is a deficient number, since it is larger than the sum of its proper divisors (580532614729).

12541156053431 is a wasteful number, since it uses less digits than its factorization.

12541156053431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629126.

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 12541156053431 in words is "twelve trillion, five hundred forty-one billion, one hundred fifty-six million, fifty-three thousand, four hundred thirty-one".

Divisors: 1 23 463 1879 10649 43217 626761 869977 14415503 20009471 290190343 1177683919 6674377889 27086730137 545267654497 12541156053431