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80713291 is a prime number
BaseRepresentation
bin1001100111110…
…01011001001011
312121212122211011
410303321121023
5131130311131
612001544351
72000023501
oct463713113
9177778734
1080713291
11416190aa
12230450b7
131394cc59
14aa10671
1571450b1
hex4cf964b

80713291 has 2 divisors, whose sum is σ = 80713292. Its totient is φ = 80713290.

The previous prime is 80713277. The next prime is 80713307. The reversal of 80713291 is 19231708.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80713291 - 217 = 80582219 is a prime.

It is not a weakly prime, because it can be changed into another prime (80713211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40356645 + 40356646.

It is an arithmetic number, because the mean of its divisors is an integer number (40356646).

Almost surely, 280713291 is an apocalyptic number.

80713291 is a deficient number, since it is larger than the sum of its proper divisors (1).

80713291 is an equidigital number, since it uses as much as digits as its factorization.

80713291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 80713291 is about 8984.0576022196. The cubic root of 80713291 is about 432.1637664281.

Adding to 80713291 its reverse (19231708), we get a palindrome (99944999).

The spelling of 80713291 in words is "eighty million, seven hundred thirteen thousand, two hundred ninety-one".