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452321213 = 7330720183
BaseRepresentation
bin11010111101011…
…101111110111101
31011112010022001112
4122331131332331
51411243234323
6112514451405
714131444511
oct3275357675
91145108045
10452321213
11212361693
12107593b65
13729303b6
1444104141
1529a9b178
hex1af5dfbd

452321213 has 8 divisors (see below), whose sum is σ = 460033728. Its totient is φ = 444649824.

The previous prime is 452321209. The next prime is 452321231. The reversal of 452321213 is 312123254.

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 452321213 - 22 = 452321209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452321203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12320 + ... + 32502.

It is an arithmetic number, because the mean of its divisors is an integer number (57504216).

Almost surely, 2452321213 is an apocalyptic number.

It is an amenable number.

452321213 is a deficient number, since it is larger than the sum of its proper divisors (7712515).

452321213 is a wasteful number, since it uses less digits than its factorization.

452321213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20563.

The product of its digits is 1440, while the sum is 23.

The square root of 452321213 is about 21267.8445781419. The cubic root of 452321213 is about 767.6247788439.

Adding to 452321213 its reverse (312123254), we get a palindrome (764444467).

The spelling of 452321213 in words is "four hundred fifty-two million, three hundred twenty-one thousand, two hundred thirteen".

Divisors: 1 73 307 20183 22411 1473359 6196181 452321213