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450144121 = 7317202859
BaseRepresentation
bin11010110101001…
…010011101111001
31011101000200122111
4122311022131321
51410214102441
6112400052321
714104106350
oct3265123571
91141020574
10450144121
11211104a39
121069040a1
137234a48b
1443ad8997
15297bb081
hex1ad4a779

450144121 has 8 divisors (see below), whose sum is σ = 516075840. Its totient is φ = 384618768.

The previous prime is 450144103. The next prime is 450144131. The reversal of 450144121 is 121441054.

Adding to 450144121 its reverse (121441054), we get a palindrome (571585175).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 450144121 - 211 = 450142073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 450144092 and 450144101.

It is not an unprimeable number, because it can be changed into a prime (450144131) 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 in 7 ways as a sum of consecutive naturals, for example, 99211 + ... + 103648.

It is an arithmetic number, because the mean of its divisors is an integer number (64509480).

Almost surely, 2450144121 is an apocalyptic number.

It is an amenable number.

450144121 is a deficient number, since it is larger than the sum of its proper divisors (65931719).

450144121 is a wasteful number, since it uses less digits than its factorization.

450144121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203183.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 450144121 is about 21216.6001282015. The cubic root of 450144121 is about 766.3912320184.

The spelling of 450144121 in words is "four hundred fifty million, one hundred forty-four thousand, one hundred twenty-one".

Divisors: 1 7 317 2219 202859 1420013 64306303 450144121