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255608093 = 1350938629
BaseRepresentation
bin11110011110001…
…00010100011101
3122210222020101102
433033010110131
51010413424333
641210322445
76222430046
oct1717042435
9583866342
10255608093
11121314164
1271729425
1340c571c0
1425d398cd
1517690ae8
hexf3c451d

255608093 has 8 divisors (see below), whose sum is σ = 275818200. Its totient is φ = 235476288.

The previous prime is 255608081. The next prime is 255608123. The reversal of 255608093 is 390806552.

It can be written as a sum of positive squares in 4 ways, for example, as 822649 + 254785444 = 907^2 + 15962^2 .

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 255608093 - 220 = 254559517 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255608033) 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, 12698 + ... + 25931.

It is an arithmetic number, because the mean of its divisors is an integer number (34477275).

Almost surely, 2255608093 is an apocalyptic number.

It is an amenable number.

255608093 is a deficient number, since it is larger than the sum of its proper divisors (20210107).

255608093 is a wasteful number, since it uses less digits than its factorization.

255608093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39151.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 255608093 is about 15987.7482154305. The cubic root of 255608093 is about 634.6362378101.

The spelling of 255608093 in words is "two hundred fifty-five million, six hundred eight thousand, ninety-three".

Divisors: 1 13 509 6617 38629 502177 19662161 255608093