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80232791 is a prime number
BaseRepresentation
bin1001100100001…
…00000101010111
312120222020200212
410302010011113
5131014422131
611543400035
71662652562
oct462040527
9176866625
1080232791
11413200a1
1222a5301b
1313812332
14a9274d9
15709ca2b
hex4c84157

80232791 has 2 divisors, whose sum is σ = 80232792. Its totient is φ = 80232790.

The previous prime is 80232727. The next prime is 80232811. The reversal of 80232791 is 19723208.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80232791 - 26 = 80232727 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80232721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40116395 + 40116396.

It is an arithmetic number, because the mean of its divisors is an integer number (40116396).

Almost surely, 280232791 is an apocalyptic number.

80232791 is a deficient number, since it is larger than the sum of its proper divisors (1).

80232791 is an equidigital number, since it uses as much as digits as its factorization.

80232791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 80232791 is about 8957.2758693701. The cubic root of 80232791 is about 431.3044774419.

Adding to 80232791 its reverse (19723208), we get a palindrome (99955999).

The spelling of 80232791 in words is "eighty million, two hundred thirty-two thousand, seven hundred ninety-one".