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450213253 = 7313205483
BaseRepresentation
bin11010110101011…
…011010110000101
31011101011012110221
4122311123112011
51410223311003
6112401344341
714104515040
oct3265332605
91141135427
10450213253
11211151976
121069380b1
1372372a99
1443b15c57
15297d17bd
hex1ad5b585

450213253 has 8 divisors (see below), whose sum is σ = 516175808. Its totient is φ = 384662304.

The previous prime is 450213233. The next prime is 450213259. The reversal of 450213253 is 352312054.

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 450213253 - 25 = 450213221 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 (450213259) 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, 100551 + ... + 104932.

It is an arithmetic number, because the mean of its divisors is an integer number (64521976).

Almost surely, 2450213253 is an apocalyptic number.

It is an amenable number.

450213253 is a deficient number, since it is larger than the sum of its proper divisors (65962555).

450213253 is a wasteful number, since it uses less digits than its factorization.

450213253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205803.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 450213253 is about 21218.2292616514. The cubic root of 450213253 is about 766.4304634883.

The spelling of 450213253 in words is "four hundred fifty million, two hundred thirteen thousand, two hundred fifty-three".

Divisors: 1 7 313 2191 205483 1438381 64316179 450213253