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255430111 = 23311013547
BaseRepresentation
bin11110011100110…
…00110111011111
3122210122012020111
433032120313133
51010342230421
641202430451
76221056126
oct1716306737
9583565214
10255430111
11121202472
1271662427
1340bc41a1
1425cd0abd
1517657ee1
hexf398ddf

255430111 has 16 divisors (see below), whose sum is σ = 277936128. Its totient is φ = 234036000.

The previous prime is 255430099. The next prime is 255430163. The reversal of 255430111 is 111034552.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 255430111 - 27 = 255429983 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 (255430181) 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 15 ways as a sum of consecutive naturals, for example, 70240 + ... + 73786.

It is an arithmetic number, because the mean of its divisors is an integer number (17371008).

Almost surely, 2255430111 is an apocalyptic number.

255430111 is a deficient number, since it is larger than the sum of its proper divisors (22506017).

255430111 is a wasteful number, since it uses less digits than its factorization.

255430111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3702.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 255430111 is about 15982.1810464029. The cubic root of 255430111 is about 634.4889028117.

Adding to 255430111 its reverse (111034552), we get a palindrome (366464663).

The spelling of 255430111 in words is "two hundred fifty-five million, four hundred thirty thousand, one hundred eleven".

Divisors: 1 23 31 101 713 2323 3131 3547 72013 81581 109957 358247 2529011 8239681 11105657 255430111