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54386150728 = 2371374706251
BaseRepresentation
bin110010101001101010…
…101100110101001000
312012101021010201021211
4302221222230311020
51342340323310403
640552403542504
73633511440130
oct625152546510
9165337121254
1054386150728
1121079623008
12a65998aa34
1351896940a0
1428bd081ac0
15163499506d
hexca9aacd48

54386150728 has 32 divisors (see below), whose sum is σ = 125506503360. Its totient is φ = 21515400000.

The previous prime is 54386150723. The next prime is 54386150747. The reversal of 54386150728 is 82705168345.

It is a happy number.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (54386150723) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 37352398 + ... + 37353853.

It is an arithmetic number, because the mean of its divisors is an integer number (3922078230).

Almost surely, 254386150728 is an apocalyptic number.

It is an amenable number.

54386150728 is an abundant number, since it is smaller than the sum of its proper divisors (71120352632).

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

54386150728 is a wasteful number, since it uses less digits than its factorization.

54386150728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74706277 (or 74706273 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 49.

The spelling of 54386150728 in words is "fifty-four billion, three hundred eighty-six million, one hundred fifty thousand, seven hundred twenty-eight".

Divisors: 1 2 4 7 8 13 14 26 28 52 56 91 104 182 364 728 74706251 149412502 298825004 522943757 597650008 971181263 1045887514 1942362526 2091775028 3884725052 4183550056 6798268841 7769450104 13596537682 27193075364 54386150728