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20323123023200 = 255261416457439
BaseRepresentation
bin1001001111011110110001…
…00001110100110101100000
32122221212112101102211002112
410213233120201310311200
510130433223443220300
6111120151441534452
74165203635266124
oct447573041646540
978855471384075
1020323123023200
116525a9613a968
122342910944428
13b4560181679a
14503904353584
152539b7555e35
hex127bd8874d60

20323123023200 has 72 divisors (see below), whose sum is σ = 50427165579840. Its totient is φ = 7995982809600.

The previous prime is 20323123023191. The next prime is 20323123023253. The reversal of 20323123023200 is 232032132302.

It is a super-2 number, since 2×203231230232002 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 208179920 + ... + 208277519.

It is an arithmetic number, because the mean of its divisors is an integer number (700377299720).

Almost surely, 220323123023200 is an apocalyptic number.

20323123023200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20323123023200 is an abundant number, since it is smaller than the sum of its proper divisors (30104042556640).

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

20323123023200 is a wasteful number, since it uses less digits than its factorization.

20323123023200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416457520 (or 416457507 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 20323123023200 its reverse (232032132302), we get a palindrome (20555155155502).

The spelling of 20323123023200 in words is "twenty trillion, three hundred twenty-three billion, one hundred twenty-three million, twenty-three thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 61 80 100 122 160 200 244 305 400 488 610 800 976 1220 1525 1952 2440 3050 4880 6100 9760 12200 24400 48800 416457439 832914878 1665829756 2082287195 3331659512 4164574390 6663319024 8329148780 10411435975 13326638048 16658297560 20822871950 25403903779 33316595120 41645743900 50807807558 66633190240 83291487800 101615615116 127019518895 166582975600 203231230232 254039037790 333165951200 406462460464 508078075580 635097594475 812924920928 1016156151160 1270195188950 2032312302320 2540390377900 4064624604640 5080780755800 10161561511600 20323123023200