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448120069 is a prime number
BaseRepresentation
bin11010101101011…
…100010100000101
31011020012212011121
4122231130110011
51404204320234
6112244433541
714050646335
oct3255342405
91136185147
10448120069
1120aa52271
121060a88b1
1371abc107
144372d0c5
152951b4b4
hex1ab5c505

448120069 has 2 divisors, whose sum is σ = 448120070. Its totient is φ = 448120068.

The previous prime is 448120067. The next prime is 448120103. The reversal of 448120069 is 960021844.

It is an a-pointer prime, because the next prime (448120103) can be obtained adding 448120069 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 305795169 + 142324900 = 17487^2 + 11930^2 .

It is a cyclic number.

It is not a de Polignac number, because 448120069 - 21 = 448120067 is a prime.

It is a super-2 number, since 2×4481200692 = 401623192481129522, which contains 22 as substring.

Together with 448120067, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (448120067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224060034 + 224060035.

It is an arithmetic number, because the mean of its divisors is an integer number (224060035).

Almost surely, 2448120069 is an apocalyptic number.

It is an amenable number.

448120069 is a deficient number, since it is larger than the sum of its proper divisors (1).

448120069 is an equidigital number, since it uses as much as digits as its factorization.

448120069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 448120069 is about 21168.8466620173. The cubic root of 448120069 is about 765.2408252572.

The spelling of 448120069 in words is "four hundred forty-eight million, one hundred twenty thousand, sixty-nine".