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53739927839 = 13137293102983
BaseRepresentation
bin110010000011001001…
…100011100100011111
312010201020011012010202
4302003021203210133
51340024410142324
640404321054115
73611503564313
oct620311434437
9163636135122
1053739927839
1120877874204
12a4b948733b
1350b5833390
14285b305b43
1515e7d968ae
hexc8326391f

53739927839 has 16 divisors (see below), whose sum is σ = 58495735872. Its totient is φ = 49075454208.

The previous prime is 53739927781. The next prime is 53739927847. The reversal of 53739927839 is 93872993735.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-53739927839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53739927239) 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 15 ways as a sum of consecutive naturals, for example, 470342 + ... + 573324.

It is an arithmetic number, because the mean of its divisors is an integer number (3655983492).

Almost surely, 253739927839 is an apocalyptic number.

53739927839 is a deficient number, since it is larger than the sum of its proper divisors (4755808033).

53739927839 is a wasteful number, since it uses less digits than its factorization.

53739927839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103426.

The product of its digits is 77157360, while the sum is 65.

The spelling of 53739927839 in words is "fifty-three billion, seven hundred thirty-nine million, nine hundred twenty-seven thousand, eight hundred thirty-nine".

Divisors: 1 13 137 293 1781 3809 40141 102983 521833 1338779 14108671 30174019 183412723 392262247 4133840603 53739927839