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20344650530020 = 2252055194949579
BaseRepresentation
bin1001010000000110110111…
…01010101111110011100100
32200000221002200020110202221
410220003123222233303210
510131311321013430040
6111134111535042124
74166565256133515
oct450033352576344
980027080213687
1020344650530020
116534132927413
122346b1a370344
13b476527c48bb
1450498745ca0c
1525432745174a
hex1280dbaafce4

20344650530020 has 24 divisors (see below), whose sum is σ = 42723982627200. Its totient is φ = 8137818971232.

The previous prime is 20344650530003. The next prime is 20344650530027. The reversal of 20344650530020 is 2003505644302.

It is not an unprimeable number, because it can be changed into a prime (20344650530027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1635591 + ... + 6585169.

It is an arithmetic number, because the mean of its divisors is an integer number (1780165942800).

Almost surely, 220344650530020 is an apocalyptic number.

20344650530020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20344650530020 is an abundant number, since it is smaller than the sum of its proper divisors (22379332097180).

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

20344650530020 is a wasteful number, since it uses less digits than its factorization.

20344650530020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5155107 (or 5155105 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 34.

The spelling of 20344650530020 in words is "twenty trillion, three hundred forty-four billion, six hundred fifty million, five hundred thirty thousand, twenty".

Divisors: 1 2 4 5 10 20 205519 411038 822076 1027595 2055190 4110380 4949579 9899158 19798316 24747895 49495790 98991580 1017232526501 2034465053002 4068930106004 5086162632505 10172325265010 20344650530020