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51343248837181 = 7269121722404871
BaseRepresentation
bin10111010110010010010000…
…00110111100101000111101
320201210100220021211021122111
423223021020012330220331
523212201433200242211
6301110432441414021
713546266366226030
oct1353111006745075
9221710807737574
1051343248837181
11153a56054a8824
1259127ba19a311
1322858559aa522
14c97052a1d017
155e08508b5421
hex2eb2481bca3d

51343248837181 has 16 divisors (see below), whose sum is σ = 58944529647360. Its totient is φ = 43808869647360.

The previous prime is 51343248837157. The next prime is 51343248837187. The reversal of 51343248837181 is 18173884234315.

51343248837181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 51343248837181 - 27 = 51343248837053 is a prime.

It is a super-2 number, since 2×513432488371812 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51343248837187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8910825 + ... + 13494046.

It is an arithmetic number, because the mean of its divisors is an integer number (3684033102960).

Almost surely, 251343248837181 is an apocalyptic number.

It is an amenable number.

51343248837181 is a deficient number, since it is larger than the sum of its proper divisors (7601280810179).

51343248837181 is a wasteful number, since it uses less digits than its factorization.

51343248837181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22406364.

The product of its digits is 15482880, while the sum is 58.

The spelling of 51343248837181 in words is "fifty-one trillion, three hundred forty-three billion, two hundred forty-eight million, eight hundred thirty-seven thousand, one hundred eighty-one".

Divisors: 1 7 269 1217 1883 8519 327373 2291611 22404871 156834097 6026910299 27266728007 42188372093 190867096049 7334749833883 51343248837181