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225443141 = 7116789491
BaseRepresentation
bin11010110111111…
…11110101000101
3120201012200211222
431123333311011
5430203140031
634212010125
75405143430
oct1533776505
9521180758
10225443141
11106290850
1263600945
1337925111
1421d26817
1514bd2e7b
hexd6ffd45

225443141 has 32 divisors (see below), whose sum is σ = 289059840. Its totient is φ = 170755200.

The previous prime is 225443117. The next prime is 225443147. The reversal of 225443141 is 141344522.

It is not a de Polignac number, because 225443141 - 26 = 225443077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225443141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225443147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 458906 + ... + 459396.

It is an arithmetic number, because the mean of its divisors is an integer number (9033120).

Almost surely, 2225443141 is an apocalyptic number.

It is an amenable number.

225443141 is a deficient number, since it is larger than the sum of its proper divisors (63616699).

225443141 is a wasteful number, since it uses less digits than its factorization.

225443141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665.

The product of its digits is 3840, while the sum is 26.

The square root of 225443141 is about 15014.7641007110. The cubic root of 225443141 is about 608.6192374162.

Adding to 225443141 its reverse (141344522), we get a palindrome (366787663).

The spelling of 225443141 in words is "two hundred twenty-five million, four hundred forty-three thousand, one hundred forty-one".

Divisors: 1 7 11 67 77 89 469 491 623 737 979 3437 5159 5401 5963 6853 32897 37807 41741 43699 65593 230279 305893 361867 459151 480689 2533069 2927833 3364823 20494831 32206163 225443141