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448520053 = 1373273869
BaseRepresentation
bin11010101110111…
…101111101110101
31011020222011211211
4122232331331311
51404310120203
6112301201421
714054233432
oct3256757565
91136864754
10448520053
112101a5833
12106260271
1371bcc1a7
14437d4b89
1529599c6d
hex1abbdf75

448520053 has 4 divisors (see below), whose sum is σ = 451794060. Its totient is φ = 445246048.

The previous prime is 448520047. The next prime is 448520063. The reversal of 448520053 is 350025844.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 104714289 + 343805764 = 10233^2 + 18542^2 .

It is a cyclic number.

It is not a de Polignac number, because 448520053 - 25 = 448520021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 448519997 and 448520024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448520063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1636798 + ... + 1637071.

It is an arithmetic number, because the mean of its divisors is an integer number (112948515).

Almost surely, 2448520053 is an apocalyptic number.

It is an amenable number.

448520053 is a deficient number, since it is larger than the sum of its proper divisors (3274007).

448520053 is a wasteful number, since it uses less digits than its factorization.

448520053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3274006.

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 448520053 is about 21178.2920227293. The cubic root of 448520053 is about 765.4684376645.

Adding to 448520053 its reverse (350025844), we get a palindrome (798545897).

The spelling of 448520053 in words is "four hundred forty-eight million, five hundred twenty thousand, fifty-three".

Divisors: 1 137 3273869 448520053