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65968467241 = 1710138420773
BaseRepresentation
bin111101011100000001…
…101110110100101001
320022021110022100121111
4331130001232310221
52040100411422431
650145553110321
74523521501555
oct753401566451
9208243270544
1065968467241
1125a82530916
12109508583a1
1362b4135401
14329b414865
151ab170c7b1
hexf5c06ed29

65968467241 has 8 divisors (see below), whose sum is σ = 70540541064. Its totient is φ = 61473235200.

The previous prime is 65968467193. The next prime is 65968467247. The reversal of 65968467241 is 14276486956.

It can be written as a sum of positive squares in 4 ways, for example, as 43773426841 + 22195040400 = 209221^2 + 148980^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65968467241 - 231 = 63820983593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65968467247) 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 7 ways as a sum of consecutive naturals, for example, 19208670 + ... + 19212103.

It is an arithmetic number, because the mean of its divisors is an integer number (8817567633).

Almost surely, 265968467241 is an apocalyptic number.

It is an amenable number.

65968467241 is a deficient number, since it is larger than the sum of its proper divisors (4572073823).

65968467241 is a wasteful number, since it uses less digits than its factorization.

65968467241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38420891.

The product of its digits is 17418240, while the sum is 58.

The spelling of 65968467241 in words is "sixty-five billion, nine hundred sixty-eight million, four hundred sixty-seven thousand, two hundred forty-one".

Divisors: 1 17 101 1717 38420773 653153141 3880498073 65968467241