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80611241 is a prime number
BaseRepresentation
bin1001100111000…
…00011110101001
312121200110211112
410303200132221
5131114024431
611555440105
71666120124
oct463403651
9177613745
1080611241
1141559467
1222bb6035
1313915679
14a9c53bb
157124c2b
hex4ce07a9

80611241 has 2 divisors, whose sum is σ = 80611242. Its totient is φ = 80611240.

The previous prime is 80611189. The next prime is 80611249. The reversal of 80611241 is 14211608.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73960000 + 6651241 = 8600^2 + 2579^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80611241 is a prime.

It is not a weakly prime, because it can be changed into another prime (80611249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40305620 + 40305621.

It is an arithmetic number, because the mean of its divisors is an integer number (40305621).

Almost surely, 280611241 is an apocalyptic number.

It is an amenable number.

80611241 is a deficient number, since it is larger than the sum of its proper divisors (1).

80611241 is an equidigital number, since it uses as much as digits as its factorization.

80611241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 80611241 is about 8978.3763008687. The cubic root of 80611241 is about 431.9815539249.

Adding to 80611241 its reverse (14211608), we get a palindrome (94822849).

The spelling of 80611241 in words is "eighty million, six hundred eleven thousand, two hundred forty-one".