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6807144134047 = 65211043880407
BaseRepresentation
bin110001100001110100101…
…1010000111010110011111
3220002202102120121220102011
41203003221122013112133
51343012012344242142
622251054151012051
71301541243311305
oct143035132072637
926082376556364
106807144134047
112194991446864
1291b32a96a027
133a4bac43930a
14197678cb0275
15bc109565417
hex630e968759f

6807144134047 has 4 divisors (see below), whose sum is σ = 6808188020976. Its totient is φ = 6806100247120.

The previous prime is 6807144133991. The next prime is 6807144134071. The reversal of 6807144134047 is 7404314417086.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6807144134047 - 211 = 6807144131999 is a prime.

It is a super-2 number, since 2×68071441340472 (a number of 26 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6807144134447) 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 3 ways as a sum of consecutive naturals, for example, 521933683 + ... + 521946724.

It is an arithmetic number, because the mean of its divisors is an integer number (1702047005244).

Almost surely, 26807144134047 is an apocalyptic number.

6807144134047 is a deficient number, since it is larger than the sum of its proper divisors (1043886929).

6807144134047 is a wasteful number, since it uses less digits than its factorization.

6807144134047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043886928.

The product of its (nonzero) digits is 1806336, while the sum is 49.

The spelling of 6807144134047 in words is "six trillion, eight hundred seven billion, one hundred forty-four million, one hundred thirty-four thousand, forty-seven".

Divisors: 1 6521 1043880407 6807144134047