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31301421243111 = 331975884831969
BaseRepresentation
bin1110001110111111011100…
…00110000001101011100111
311002211101102212100211202000
413013133232012001223213
513100320302314234421
6150323401401020343
76410311253420535
oct707375606015347
9132741385324660
1031301421243111
119a789492a1228
1236165127846b3
131460932b12336
147a2dd55b7155
1539434d88d226
hex1c77ee181ae7

31301421243111 has 16 divisors (see below), whose sum is σ = 46607869202400. Its totient is φ = 20761687183104.

The previous prime is 31301421243097. The next prime is 31301421243121. The reversal of 31301421243111 is 11134212410313.

31301421243111 is a `hidden beast` number, since 3 + 1 + 3 + 0 + 1 + 4 + 212 + 431 + 11 = 666.

It is not a de Polignac number, because 31301421243111 - 211 = 31301421241063 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31301421243121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2942410666 + ... + 2942421303.

It is an arithmetic number, because the mean of its divisors is an integer number (2912991825150).

Almost surely, 231301421243111 is an apocalyptic number.

31301421243111 is a deficient number, since it is larger than the sum of its proper divisors (15306447959289).

31301421243111 is a wasteful number, since it uses less digits than its factorization.

31301421243111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5884832175 (or 5884832169 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 31301421243111 its reverse (11134212410313), we get a palindrome (42435633653424).

The spelling of 31301421243111 in words is "thirty-one trillion, three hundred one billion, four hundred twenty-one million, two hundred forty-three thousand, one hundred eleven".

Divisors: 1 3 9 27 197 591 1773 5319 5884831969 17654495907 52963487721 158890463163 1159311897893 3477935693679 10433807081037 31301421243111