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2223225 = 325241241
BaseRepresentation
bin1000011110110001111001
311011221200200
420132301321
51032120400
6115352413
724616464
oct10366171
94157620
102223225
111289384
128b2709
135cac24
1441c2db
152ddb00
hex21ec79

2223225 has 36 divisors (see below), whose sum is σ = 4096092. Its totient is φ = 1152000.

The previous prime is 2223217. The next prime is 2223233. The reversal of 2223225 is 5223222.

It is an interprime number because it is at equal distance from previous prime (2223217) and next prime (2223233).

It can be written as a sum of positive squares in 6 ways, for example, as 184041 + 2039184 = 429^2 + 1428^2 .

It is not a de Polignac number, because 2223225 - 23 = 2223217 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2223198 and 2223207.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9105 + ... + 9345.

22223225 is an apocalyptic number.

2223225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2223225 is a deficient number, since it is larger than the sum of its proper divisors (1872867).

2223225 is a wasteful number, since it uses less digits than its factorization.

2223225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298 (or 290 counting only the distinct ones).

The product of its digits is 480, while the sum is 18.

The square root of 2223225 is about 1491.0482889565. The cubic root of 2223225 is about 130.5152137986.

Adding to 2223225 its reverse (5223222), we get a palindrome (7446447).

The spelling of 2223225 in words is "two million, two hundred twenty-three thousand, two hundred twenty-five".

Divisors: 1 3 5 9 15 25 41 45 75 123 205 225 241 369 615 723 1025 1205 1845 2169 3075 3615 6025 9225 9881 10845 18075 29643 49405 54225 88929 148215 247025 444645 741075 2223225