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450213025 = 5288120441
BaseRepresentation
bin11010110101011…
…011010010100001
31011101011012011111
4122311123102201
51410223304100
6112401343321
714104514263
oct3265332241
91141135144
10450213025
11211151789
12106937b41
1372372952
1443b15b33
15297d16ba
hex1ad5b4a1

450213025 has 12 divisors (see below), whose sum is σ = 558925164. Its totient is φ = 359744000.

The previous prime is 450213019. The next prime is 450213079. The reversal of 450213025 is 520312054.

It can be written as a sum of positive squares in 6 ways, for example, as 7573504 + 442639521 = 2752^2 + 21039^2 .

It is not a de Polignac number, because 450213025 - 211 = 450210977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 450212987 and 450213005.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11805 + ... + 32245.

It is an arithmetic number, because the mean of its divisors is an integer number (46577097).

Almost surely, 2450213025 is an apocalyptic number.

It is an amenable number.

450213025 is a deficient number, since it is larger than the sum of its proper divisors (108712139).

450213025 is a wasteful number, since it uses less digits than its factorization.

450213025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21332 (or 21327 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 450213025 is about 21218.2238889121. The cubic root of 450213025 is about 766.4303341080.

Adding to 450213025 its reverse (520312054), we get a palindrome (970525079).

The spelling of 450213025 in words is "four hundred fifty million, two hundred thirteen thousand, twenty-five".

Divisors: 1 5 25 881 4405 20441 22025 102205 511025 18008521 90042605 450213025