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342303431405 = 51317309776861
BaseRepresentation
bin1001111101100101101…
…11111101101011101101
31012201112201022000002212
410332302313331223231
521102014134301110
6421130234300205
733505412105525
oct4766267755355
91181481260085
10342303431405
111221963aa461
1256410887665
1326382188120
14127d35d2685
158d864e3e05
hex4fb2dfdaed

342303431405 has 16 divisors (see below), whose sum is σ = 468382615344. Its totient is φ = 237908628480.

The previous prime is 342303431369. The next prime is 342303431453. The reversal of 342303431405 is 504134303243.

It can be written as a sum of positive squares in 8 ways, for example, as 39219049444 + 303084381961 = 198038^2 + 550531^2 .

It is a de Polignac number, because none of the positive numbers 2k-342303431405 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154887326 + ... + 154889535.

It is an arithmetic number, because the mean of its divisors is an integer number (29273913459).

Almost surely, 2342303431405 is an apocalyptic number.

It is an amenable number.

342303431405 is a deficient number, since it is larger than the sum of its proper divisors (126079183939).

342303431405 is a wasteful number, since it uses less digits than its factorization.

342303431405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309776896.

The product of its (nonzero) digits is 51840, while the sum is 32.

Adding to 342303431405 its reverse (504134303243), we get a palindrome (846437734648).

The spelling of 342303431405 in words is "three hundred forty-two billion, three hundred three million, four hundred thirty-one thousand, four hundred five".

Divisors: 1 5 13 17 65 85 221 1105 309776861 1548884305 4027099193 5266206637 20135495965 26331033185 68460686281 342303431405