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80222449 is a prime number
BaseRepresentation
bin1001100100000…
…01100011110001
312120221201111211
410302001203301
5131014104244
611543240121
71662610456
oct462014361
9176851454
1080222449
114131334a
1222a49041
131380a708
14a92382d
157099934
hex4c818f1

80222449 has 2 divisors, whose sum is σ = 80222450. Its totient is φ = 80222448.

The previous prime is 80222437. The next prime is 80222479. The reversal of 80222449 is 94422208.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61732449 + 18490000 = 7857^2 + 4300^2 .

It is a cyclic number.

It is not a de Polignac number, because 80222449 - 211 = 80220401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80222449.

It is not a weakly prime, because it can be changed into another prime (80222419) 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, 40111224 + 40111225.

It is an arithmetic number, because the mean of its divisors is an integer number (40111225).

Almost surely, 280222449 is an apocalyptic number.

It is an amenable number.

80222449 is a deficient number, since it is larger than the sum of its proper divisors (1).

80222449 is an equidigital number, since it uses as much as digits as its factorization.

80222449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 80222449 is about 8956.6985547131. The cubic root of 80222449 is about 431.2859449420.

The spelling of 80222449 in words is "eighty million, two hundred twenty-two thousand, four hundred forty-nine".