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225948743 = 547413069
BaseRepresentation
bin11010111011110…
…11010001000111
3120202011101101222
431131323101013
5430320324433
634230510555
75412350456
oct1535732107
9522141358
10225948743
111065a66a9
126380545b
1337a712a7
1422018b9d
1514c82b98
hexd77b447

225948743 has 4 divisors (see below), whose sum is σ = 226362360. Its totient is φ = 225535128.

The previous prime is 225948719. The next prime is 225948761. The reversal of 225948743 is 347849522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 347849522 = 2173924761.

It is a cyclic number.

It is not a de Polignac number, because 225948743 - 210 = 225947719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225948694 and 225948703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225948043) 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, 205988 + ... + 207081.

It is an arithmetic number, because the mean of its divisors is an integer number (56590590).

Almost surely, 2225948743 is an apocalyptic number.

225948743 is a deficient number, since it is larger than the sum of its proper divisors (413617).

225948743 is an equidigital number, since it uses as much as digits as its factorization.

225948743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413616.

The product of its digits is 483840, while the sum is 44.

The square root of 225948743 is about 15031.5914992392. The cubic root of 225948743 is about 609.0738817634.

The spelling of 225948743 in words is "two hundred twenty-five million, nine hundred forty-eight thousand, seven hundred forty-three".

Divisors: 1 547 413069 225948743