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54242256823 = 331791634837
BaseRepresentation
bin110010100001000101…
…110010011110110111
312012000020101010221221
4302201011302132313
51342042004204243
640530223451211
73630113401306
oct624105623667
9165006333857
1054242256823
1121005381427
12a619756b07
135165922571
1428a7d0643d
15162701ebed
hexca11727b7

54242256823 has 4 divisors (see below), whose sum is σ = 54243924840. Its totient is φ = 54240588808.

The previous prime is 54242256791. The next prime is 54242256829. The reversal of 54242256823 is 32865224245.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54242256823 - 25 = 54242256791 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54242256823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54242256829) 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 in 3 ways as a sum of consecutive naturals, for example, 784240 + ... + 850597.

It is an arithmetic number, because the mean of its divisors is an integer number (13560981210).

Almost surely, 254242256823 is an apocalyptic number.

54242256823 is a deficient number, since it is larger than the sum of its proper divisors (1668017).

54242256823 is a wasteful number, since it uses less digits than its factorization.

54242256823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668016.

The product of its digits is 921600, while the sum is 43.

The spelling of 54242256823 in words is "fifty-four billion, two hundred forty-two million, two hundred fifty-six thousand, eight hundred twenty-three".

Divisors: 1 33179 1634837 54242256823