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551204214 = 231116075197
BaseRepresentation
bin100000110110101…
…011010101110110
31102102012002000220
4200312223111312
52112102013324
6130410115210
716442105241
oct4066532566
91372162026
10551204214
1126315a980
1213471bb06
138a272652
14532c4258
15335ceb79
hex20dab576

551204214 has 32 divisors (see below), whose sum is σ = 1203607296. Its totient is φ = 166895520.

The previous prime is 551204201. The next prime is 551204219. The reversal of 551204214 is 412402155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551204219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103464 + ... + 108660.

It is an arithmetic number, because the mean of its divisors is an integer number (37612728).

Almost surely, 2551204214 is an apocalyptic number.

551204214 is an abundant number, since it is smaller than the sum of its proper divisors (652403082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

551204214 is a wasteful number, since it uses less digits than its factorization.

551204214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6820.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 551204214 is about 23477.7386900868. The cubic root of 551204214 is about 819.9187972336.

Adding to 551204214 its reverse (412402155), we get a palindrome (963606369).

The spelling of 551204214 in words is "five hundred fifty-one million, two hundred four thousand, two hundred fourteen".

Divisors: 1 2 3 6 11 22 33 66 1607 3214 4821 5197 9642 10394 15591 17677 31182 35354 53031 57167 106062 114334 171501 343002 8351579 16703158 25054737 50109474 91867369 183734738 275602107 551204214