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51712350593 = 143653359981
BaseRepresentation
bin110000001010010010…
…111101100110000001
311221110220220121001012
4300022102331212001
51321401330204333
635431211050305
73510323504351
oct601222754601
9157426817035
1051712350593
111aa27301432
12a032440995
134b51751a27
142707d0cb61
151529d87e48
hexc0a4bd981

51712350593 has 4 divisors (see below), whose sum is σ = 51712854228. Its totient is φ = 51711846960.

The previous prime is 51712350497. The next prime is 51712350607. The reversal of 51712350593 is 39505321715.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 39505321715 = 57901064343.

It can be written as a sum of positive squares in 2 ways, for example, as 37337059984 + 14375290609 = 193228^2 + 119897^2 .

It is a cyclic number.

It is not a de Polignac number, because 51712350593 - 228 = 51443915137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51712350593.

It is not an unprimeable number, because it can be changed into a prime (51712310593) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36338 + ... + 323643.

It is an arithmetic number, because the mean of its divisors is an integer number (12928213557).

Almost surely, 251712350593 is an apocalyptic number.

It is an amenable number.

51712350593 is a deficient number, since it is larger than the sum of its proper divisors (503635).

51712350593 is a wasteful number, since it uses less digits than its factorization.

51712350593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503634.

The product of its (nonzero) digits is 141750, while the sum is 41.

The spelling of 51712350593 in words is "fifty-one billion, seven hundred twelve million, three hundred fifty thousand, five hundred ninety-three".

Divisors: 1 143653 359981 51712350593