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223210325 = 5213686801
BaseRepresentation
bin11010100110111…
…10101101010101
3120120000021000002
431103132231111
5424120212300
634052101045
75350153652
oct1523365525
9516007002
10223210325
11104aa6248
1262904785
1337322a20
1421904c29
15148e15d5
hexd4deb55

223210325 has 12 divisors (see below), whose sum is σ = 298072068. Its totient is φ = 164832000.

The previous prime is 223210321. The next prime is 223210327. The reversal of 223210325 is 523012322.

It can be written as a sum of positive squares in 6 ways, for example, as 9991921 + 213218404 = 3161^2 + 14602^2 .

It is not a de Polignac number, because 223210325 - 22 = 223210321 is a prime.

It is a super-3 number, since 3×2232103253 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223210297 and 223210306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223210321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 343076 + ... + 343725.

It is an arithmetic number, because the mean of its divisors is an integer number (24839339).

Almost surely, 2223210325 is an apocalyptic number.

223210325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

223210325 is a deficient number, since it is larger than the sum of its proper divisors (74861743).

223210325 is a wasteful number, since it uses less digits than its factorization.

223210325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686824 (or 686819 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 223210325 is about 14940.2250652391. The cubic root of 223210325 is about 606.6032879020.

Adding to 223210325 its reverse (523012322), we get a palindrome (746222647).

The spelling of 223210325 in words is "two hundred twenty-three million, two hundred ten thousand, three hundred twenty-five".

Divisors: 1 5 13 25 65 325 686801 3434005 8928413 17170025 44642065 223210325