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656141 is a prime number
BaseRepresentation
bin10100000001100001101
31020100001112
42200030031
5131444031
622021405
75401643
oct2401415
91210045
10656141
11408a72
12277865
1319c865
14131193
15ce62b
hexa030d

656141 has 2 divisors, whose sum is σ = 656142. Its totient is φ = 656140.

The previous prime is 656129. The next prime is 656147. The reversal of 656141 is 141656.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 624100 + 32041 = 790^2 + 179^2 .

It is a cyclic number.

It is not a de Polignac number, because 656141 - 26 = 656077 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 656141.

It is not a weakly prime, because it can be changed into another prime (656147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328070 + 328071.

It is an arithmetic number, because the mean of its divisors is an integer number (328071).

2656141 is an apocalyptic number.

It is an amenable number.

656141 is a deficient number, since it is larger than the sum of its proper divisors (1).

656141 is an equidigital number, since it uses as much as digits as its factorization.

656141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 23.

The square root of 656141 is about 810.0253082466. The cubic root of 656141 is about 86.8958545935.

Adding to 656141 its reverse (141656), we get a palindrome (797797).

It can be divided in two parts, 656 and 141, that added together give a palindrome (797).

The spelling of 656141 in words is "six hundred fifty-six thousand, one hundred forty-one".