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225620467 = 1440115667
BaseRepresentation
bin11010111001010…
…11000111110011
3120201112201002121
431130223013303
5430224323332
634215455111
75406512422
oct1534530763
9521481077
10225620467
111063a1aa6
1263687497
1337987a47
1421d712b9
1514c1a797
hexd72b1f3

225620467 has 4 divisors (see below), whose sum is σ = 225650536. Its totient is φ = 225590400.

The previous prime is 225620399. The next prime is 225620503. The reversal of 225620467 is 764026522.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-225620467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225620267) 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 3 ways as a sum of consecutive naturals, for example, 6568 + ... + 22234.

It is an arithmetic number, because the mean of its divisors is an integer number (56412634).

Almost surely, 2225620467 is an apocalyptic number.

225620467 is a deficient number, since it is larger than the sum of its proper divisors (30069).

225620467 is a wasteful number, since it uses less digits than its factorization.

225620467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30068.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 225620467 is about 15020.6679944668. The cubic root of 225620467 is about 608.7787687439.

Adding to 225620467 its reverse (764026522), we get a palindrome (989646989).

The spelling of 225620467 in words is "two hundred twenty-five million, six hundred twenty thousand, four hundred sixty-seven".

Divisors: 1 14401 15667 225620467