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268462200505440 = 25353131786888981
BaseRepresentation
bin111101000010101000111010…
…000110001100010001100000
31022012112201212100012102010110
4331002220322012030101200
5240141441041312133230
62350545455440531320
7110355516411044124
oct7502507206142140
91265481770172113
10268462200505440
11785a41a8432387
1226139933920b40
13b6a4b52677456
144a418d59c1584
1521084b7ec04b0
hexf42a3a18c460

268462200505440 has 96 divisors (see below), whose sum is σ = 848357708206176. Its totient is φ = 71361198305280.

The previous prime is 268462200505417. The next prime is 268462200505441. The reversal of 268462200505440 is 44505002264862.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 268462200505440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268462200505441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 893294251 + ... + 893594730.

It is an arithmetic number, because the mean of its divisors is an integer number (8837059460481).

Almost surely, 2268462200505440 is an apocalyptic number.

268462200505440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268462200505440 is an abundant number, since it is smaller than the sum of its proper divisors (579895507700736).

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

268462200505440 is a wasteful number, since it uses less digits than its factorization.

268462200505440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1786889312 (or 1786889304 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 48.

The spelling of 268462200505440 in words is "two hundred sixty-eight trillion, four hundred sixty-two billion, two hundred million, five hundred five thousand, four hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 160 240 313 480 626 939 1252 1565 1878 2504 3130 3756 4695 5008 6260 7512 9390 10016 12520 15024 18780 25040 30048 37560 50080 75120 150240 1786888981 3573777962 5360666943 7147555924 8934444905 10721333886 14295111848 17868889810 21442667772 26803334715 28590223696 35737779620 42885335544 53606669430 57180447392 71475559240 85770671088 107213338860 142951118480 171541342176 214426677720 285902236960 428853355440 559296251053 857706710880 1118592502106 1677888753159 2237185004212 2796481255265 3355777506318 4474370008424 5592962510530 6711555012636 8389443765795 8948740016848 11185925021060 13423110025272 16778887531590 17897480033696 22371850042120 26846220050544 33557775063180 44743700084240 53692440101088 67115550126360 89487400168480 134231100252720 268462200505440