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557212 = 22139303
BaseRepresentation
bin10001000000010011100
31001022100111
42020002130
5120312322
615535404
74510345
oct2100234
91038314
10557212
11350707
1222a564
13166816
141070cc
15b0177
hex8809c

557212 has 6 divisors (see below), whose sum is σ = 975128. Its totient is φ = 278604.

The previous prime is 557201. The next prime is 557261. The reversal of 557212 is 212755.

It is a congruent number.

It is an unprimeable number.

557212 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69648 + ... + 69655.

2557212 is an apocalyptic number.

It is an amenable number.

557212 is a deficient number, since it is larger than the sum of its proper divisors (417916).

557212 is a wasteful number, since it uses less digits than its factorization.

557212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139307 (or 139305 counting only the distinct ones).

The product of its digits is 700, while the sum is 22.

The square root of 557212 is about 746.4663421749. The cubic root of 557212 is about 82.2886909426.

Adding to 557212 its reverse (212755), we get a palindrome (769967).

The spelling of 557212 in words is "five hundred fifty-seven thousand, two hundred twelve".

Divisors: 1 2 4 139303 278606 557212