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80207213 is a prime number
BaseRepresentation
bin1001100011111…
…01110101101101
312120220221121112
410301331311231
5131013112323
611543041405
71662515162
oct461756555
9176827545
1080207213
1141302959
1222a40265
13138037b8
14a91c069
157095178
hex4c7dd6d

80207213 has 2 divisors, whose sum is σ = 80207214. Its totient is φ = 80207212.

The previous prime is 80207201. The next prime is 80207269. The reversal of 80207213 is 31270208.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80048809 + 158404 = 8947^2 + 398^2 .

It is a cyclic number.

It is not a de Polignac number, because 80207213 - 220 = 79158637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80207273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40103606 + 40103607.

It is an arithmetic number, because the mean of its divisors is an integer number (40103607).

Almost surely, 280207213 is an apocalyptic number.

It is an amenable number.

80207213 is a deficient number, since it is larger than the sum of its proper divisors (1).

80207213 is an equidigital number, since it uses as much as digits as its factorization.

80207213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 80207213 is about 8955.8479777182. The cubic root of 80207213 is about 431.2586396645.

The spelling of 80207213 in words is "eighty million, two hundred seven thousand, two hundred thirteen".