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2253215 = 5450643
BaseRepresentation
bin1000100110000110011111
311020110211102
420212012133
51034100330
6120143315
725103066
oct10460637
94213742
102253215
1112a9968
12907b3b
1360b783
144291dd
152e7945
hex22619f

2253215 has 4 divisors (see below), whose sum is σ = 2703864. Its totient is φ = 1802568.

The previous prime is 2253203. The next prime is 2253221. The reversal of 2253215 is 5123522.

2253215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5123522 = 22561761.

It is a cyclic number.

It is not a de Polignac number, because 2253215 - 214 = 2236831 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225317 + ... + 225326.

It is an arithmetic number, because the mean of its divisors is an integer number (675966).

22253215 is an apocalyptic number.

2253215 is a deficient number, since it is larger than the sum of its proper divisors (450649).

2253215 is an equidigital number, since it uses as much as digits as its factorization.

2253215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450648.

The product of its digits is 600, while the sum is 20.

The square root of 2253215 is about 1501.0712841168. The cubic root of 2253215 is about 131.0994524782.

Adding to 2253215 its reverse (5123522), we get a palindrome (7376737).

The spelling of 2253215 in words is "two million, two hundred fifty-three thousand, two hundred fifteen".

Divisors: 1 5 450643 2253215