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225031153 = 443507971
BaseRepresentation
bin11010110100110…
…11001111110001
3120200102202201011
431122123033301
5430101444103
634155110521
75401506334
oct1532331761
9520382634
10225031153
1110602a266
1263442441
133780c739
1421c5a61b
1514b50d6d
hexd69b3f1

225031153 has 4 divisors (see below), whose sum is σ = 225539568. Its totient is φ = 224522740.

The previous prime is 225031141. The next prime is 225031171. The reversal of 225031153 is 351130522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 351130522 = 2175565261.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-225031153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225031123) 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, 253543 + ... + 254428.

It is an arithmetic number, because the mean of its divisors is an integer number (56384892).

Almost surely, 2225031153 is an apocalyptic number.

It is an amenable number.

225031153 is a deficient number, since it is larger than the sum of its proper divisors (508415).

225031153 is an equidigital number, since it uses as much as digits as its factorization.

225031153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508414.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 225031153 is about 15001.0383973910. The cubic root of 225031153 is about 608.2482692010.

Adding to 225031153 its reverse (351130522), we get a palindrome (576161675).

The spelling of 225031153 in words is "two hundred twenty-five million, thirty-one thousand, one hundred fifty-three".

Divisors: 1 443 507971 225031153