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20423341230 = 2352354928909
BaseRepresentation
bin10011000001010100…
…110111010010101110
31221201100010020020120
4103001110313102232
5313311333404410
613214331025410
71322052351615
oct230124672256
957640106216
1020423341230
118730497606
123b5b89b266
131c062cc3c6
14dba60487c
157e7ee0570
hex4c15374ae

20423341230 has 32 divisors (see below), whose sum is σ = 49019796000. Its totient is φ = 5445804672.

The previous prime is 20423341219. The next prime is 20423341247. The reversal of 20423341230 is 3214332402.

It is a super-2 number, since 2×204233412302 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20423341230.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 692016 + ... + 720924.

It is an arithmetic number, because the mean of its divisors is an integer number (1531868625).

Almost surely, 220423341230 is an apocalyptic number.

20423341230 is an abundant number, since it is smaller than the sum of its proper divisors (28596454770).

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

20423341230 is a wasteful number, since it uses less digits than its factorization.

20423341230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52468.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20423341230 its reverse (3214332402), we get a palindrome (23637673632).

The spelling of 20423341230 in words is "twenty billion, four hundred twenty-three million, three hundred forty-one thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 23549 28909 47098 57818 70647 86727 117745 141294 144545 173454 235490 289090 353235 433635 706470 867270 680778041 1361556082 2042334123 3403890205 4084668246 6807780410 10211670615 20423341230