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54389557320 = 233571910333299
BaseRepresentation
bin110010101001110111…
…101100100001001000
312012101111112210020220
4302221313230201020
51342342211313240
640553004550040
73633552415650
oct625167544110
9165344483226
1054389557320
112108053a47a
12a65ab52320
13518a2b7817
1428bd6cb360
151634e195d0
hexca9dec848

54389557320 has 256 divisors, whose sum is σ = 196542720000. Its totient is φ = 11762620416.

The previous prime is 54389557289. The next prime is 54389557351. The reversal of 54389557320 is 2375598345.

It is an interprime number because it is at equal distance from previous prime (54389557289) and next prime (54389557351).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16485031 + ... + 16488329.

It is an arithmetic number, because the mean of its divisors is an integer number (767745000).

Almost surely, 254389557320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54389557320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98271360000).

54389557320 is an abundant number, since it is smaller than the sum of its proper divisors (142153162680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54389557320 is a wasteful number, since it uses less digits than its factorization.

54389557320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4372 (or 4368 counting only the distinct ones).

The product of its (nonzero) digits is 4536000, while the sum is 51.

The spelling of 54389557320 in words is "fifty-four billion, three hundred eighty-nine million, five hundred fifty-seven thousand, three hundred twenty".