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212424553 = 1131760919
BaseRepresentation
bin11001010100101…
…01011101101001
3112210201021201001
430222111131221
5413340041203
633024555001
75156402365
oct1452253551
9483637631
10212424553
11a99a9790
125b182a61
1335017603
14202d82a5
15139b091d
hexca95769

212424553 has 8 divisors (see below), whose sum is σ = 232470720. Its totient is φ = 192500880.

The previous prime is 212424551. The next prime is 212424559. The reversal of 212424553 is 355424212.

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

It is not a de Polignac number, because 212424553 - 21 = 212424551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212424551) 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, 26973 + ... + 33946.

It is an arithmetic number, because the mean of its divisors is an integer number (29058840).

Almost surely, 2212424553 is an apocalyptic number.

It is an amenable number.

212424553 is a deficient number, since it is larger than the sum of its proper divisors (20046167).

212424553 is a wasteful number, since it uses less digits than its factorization.

212424553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61247.

The product of its digits is 9600, while the sum is 28.

The square root of 212424553 is about 14574.7916966247. The cubic root of 212424553 is about 596.6709642891.

Adding to 212424553 its reverse (355424212), we get a palindrome (567848765).

The spelling of 212424553 in words is "two hundred twelve million, four hundred twenty-four thousand, five hundred fifty-three".

Divisors: 1 11 317 3487 60919 670109 19311323 212424553