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2225237 = 7245413
BaseRepresentation
bin1000011111010001010101
311012001110012
420133101111
51032201422
6115410005
724625400
oct10372125
94161405
102225237
11128a943
128b3905
135cbb11
1441cd37
152de4e2
hex21f455

2225237 has 6 divisors (see below), whose sum is σ = 2588598. Its totient is φ = 1907304.

The previous prime is 2225233. The next prime is 2225263. The reversal of 2225237 is 7325222.

2225237 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1223236 + 1002001 = 1106^2 + 1001^2 .

It is not a de Polignac number, because 2225237 - 22 = 2225233 is a prime.

It is a d-powerful number, because it can be written as 24 + 210 + 213 + 59 + 218 + 36 + 7 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2225231) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 22658 + ... + 22755.

It is an arithmetic number, because the mean of its divisors is an integer number (431433).

22225237 is an apocalyptic number.

It is an amenable number.

2225237 is a deficient number, since it is larger than the sum of its proper divisors (363361).

2225237 is an equidigital number, since it uses as much as digits as its factorization.

2225237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45427 (or 45420 counting only the distinct ones).

The product of its digits is 1680, while the sum is 23.

The square root of 2225237 is about 1491.7228294827. The cubic root of 2225237 is about 130.5545736526.

The spelling of 2225237 in words is "two million, two hundred twenty-five thousand, two hundred thirty-seven".

Divisors: 1 7 49 45413 317891 2225237