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255008243 = 761597209
BaseRepresentation
bin11110011001100…
…01110111110011
3122202211202112202
433030301313303
51010240230433
641145413415
76214351160
oct1714616763
9582752482
10255008243
11120a44516
127149a26b
1340aa7169
1425c21067
15175c2ee8
hexf331df3

255008243 has 8 divisors (see below), whose sum is σ = 296216160. Its totient is φ = 214994880.

The previous prime is 255008239. The next prime is 255008293. The reversal of 255008243 is 342800552.

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

It is a cyclic number.

It is not a de Polignac number, because 255008243 - 22 = 255008239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255008293) 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, 298178 + ... + 299031.

It is an arithmetic number, because the mean of its divisors is an integer number (37027020).

Almost surely, 2255008243 is an apocalyptic number.

255008243 is a deficient number, since it is larger than the sum of its proper divisors (41207917).

255008243 is an equidigital number, since it uses as much as digits as its factorization.

255008243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597277.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 255008243 is about 15968.9775189271. The cubic root of 255008243 is about 634.1394033469.

Adding to 255008243 its reverse (342800552), we get a palindrome (597808795).

The spelling of 255008243 in words is "two hundred fifty-five million, eight thousand, two hundred forty-three".

Divisors: 1 7 61 427 597209 4180463 36429749 255008243