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80416331 is a prime number
BaseRepresentation
bin1001100101100…
…00111001001011
312121022120110122
410302300321023
5131041310311
611551333455
71664345642
oct462607113
9177276418
1080416331
1141435a86
1222b2128b
1313877a38
14a974359
1570d70db
hex4cb0e4b

80416331 has 2 divisors, whose sum is σ = 80416332. Its totient is φ = 80416330.

The previous prime is 80416313. The next prime is 80416363. The reversal of 80416331 is 13361408.

Together with previous prime (80416313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80416331 - 214 = 80399947 is a prime.

It is a super-2 number, since 2×804163312 = 12933572583003122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80416331.

It is not a weakly prime, because it can be changed into another prime (80416381) 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, 40208165 + 40208166.

It is an arithmetic number, because the mean of its divisors is an integer number (40208166).

Almost surely, 280416331 is an apocalyptic number.

80416331 is a deficient number, since it is larger than the sum of its proper divisors (1).

80416331 is an equidigital number, since it uses as much as digits as its factorization.

80416331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 80416331 is about 8967.5153191952. The cubic root of 80416331 is about 431.6331100629.

Adding to 80416331 its reverse (13361408), we get a palindrome (93777739).

The spelling of 80416331 in words is "eighty million, four hundred sixteen thousand, three hundred thirty-one".