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557222223 = 3971914853
BaseRepresentation
bin100001001101101…
…000100101001111
31102211111211012010
4201031220211033
52120122102343
6131143112303
716544211405
oct4115504517
91384454163
10557222223
112665a0338
12136742693
138b59b8bc
145400d475
1533dbcd33
hex2136894f

557222223 has 8 divisors (see below), whose sum is σ = 750622768. Its totient is φ = 367651584.

The previous prime is 557222221. The next prime is 557222233. The reversal of 557222223 is 322222755.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 557222223 - 21 = 557222221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557222221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 957136 + ... + 957717.

It is an arithmetic number, because the mean of its divisors is an integer number (93827846).

Almost surely, 2557222223 is an apocalyptic number.

557222223 is a deficient number, since it is larger than the sum of its proper divisors (193400545).

557222223 is a wasteful number, since it uses less digits than its factorization.

557222223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1914953.

The product of its digits is 16800, while the sum is 30.

The square root of 557222223 is about 23605.5549182814. The cubic root of 557222223 is about 822.8919418145.

Adding to 557222223 its reverse (322222755), we get a palindrome (879444978).

The spelling of 557222223 in words is "five hundred fifty-seven million, two hundred twenty-two thousand, two hundred twenty-three".

Divisors: 1 3 97 291 1914853 5744559 185740741 557222223