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54430131487 is a prime number
BaseRepresentation
bin110010101100010010…
…011110010100011111
312012111022220011112211
4302230102132110133
51342433103201422
641001014341251
73634554324664
oct625422362437
9165438804484
1054430131487
11210a1432446
12a67065a827
1351958227c4
1428c4c4da6b
151638781577
hexcac49e51f

54430131487 has 2 divisors, whose sum is σ = 54430131488. Its totient is φ = 54430131486.

The previous prime is 54430131433. The next prime is 54430131517. The reversal of 54430131487 is 78413103445.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54430131487 - 215 = 54430098719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54430134487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27215065743 + 27215065744.

It is an arithmetic number, because the mean of its divisors is an integer number (27215065744).

Almost surely, 254430131487 is an apocalyptic number.

54430131487 is a deficient number, since it is larger than the sum of its proper divisors (1).

54430131487 is an equidigital number, since it uses as much as digits as its factorization.

54430131487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 54430131487 in words is "fifty-four billion, four hundred thirty million, one hundred thirty-one thousand, four hundred eighty-seven".