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20425314342 = 238039423463
BaseRepresentation
bin10011000001011100…
…011001000000100110
31221201110211110211210
4103001130121000212
5313312340024332
613214441212250
71322105210256
oct230134310046
957643743753
1020425314342
118731614a84
123b60491086
131c06840524
14dba999966
157e827eecc
hex4c1719026

20425314342 has 16 divisors (see below), whose sum is σ = 40855806720. Its totient is φ = 6807575112.

The previous prime is 20425314337. The next prime is 20425314383. The reversal of 20425314342 is 24341352402.

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163498 + ... + 259965.

It is an arithmetic number, because the mean of its divisors is an integer number (2553487920).

Almost surely, 220425314342 is an apocalyptic number.

20425314342 is an abundant number, since it is smaller than the sum of its proper divisors (20430492378).

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

20425314342 is a wasteful number, since it uses less digits than its factorization.

20425314342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431507.

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 20425314342 its reverse (24341352402), we get a palindrome (44766666744).

The spelling of 20425314342 in words is "twenty billion, four hundred twenty-five million, three hundred fourteen thousand, three hundred forty-two".

Divisors: 1 2 3 6 8039 16078 24117 48234 423463 846926 1270389 2540778 3404219057 6808438114 10212657171 20425314342