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255089487 = 3190144729
BaseRepresentation
bin11110011010001…
…01101101001111
3122202222212222210
433031011231033
51010300330422
641151241503
76215140062
oct1715055517
9582885883
10255089487
11120a9a564
1271519293
1340b05133
1425c428d9
15175dc10c
hexf345b4f

255089487 has 8 divisors (see below), whose sum is σ = 340305840. Its totient is φ = 169966400.

The previous prime is 255089467. The next prime is 255089503. The reversal of 255089487 is 784980552.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-255089487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255089467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16662 + ... + 28067.

It is an arithmetic number, because the mean of its divisors is an integer number (42538230).

Almost surely, 2255089487 is an apocalyptic number.

255089487 is a deficient number, since it is larger than the sum of its proper divisors (85216353).

255089487 is a wasteful number, since it uses less digits than its factorization.

255089487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46633.

The product of its (nonzero) digits is 806400, while the sum is 48.

The square root of 255089487 is about 15971.5211235499. The cubic root of 255089487 is about 634.2067404530.

The spelling of 255089487 in words is "two hundred fifty-five million, eighty-nine thousand, four hundred eighty-seven".

Divisors: 1 3 1901 5703 44729 134187 85029829 255089487