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255738085 = 5157325781
BaseRepresentation
bin11110011111001…
…00000011100101
3122211012211200221
433033210003211
51010432104320
641213204341
76223511041
oct1717440345
9584184627
10255738085
111213a2899
12717906b1
1340ca1415
1425d71021
15176b93aa
hexf3e40e5

255738085 has 8 divisors (see below), whose sum is σ = 308841336. Its totient is φ = 203286720.

The previous prime is 255738079. The next prime is 255738103. The reversal of 255738085 is 580837552.

It can be written as a sum of positive squares in 4 ways, for example, as 3849444 + 251888641 = 1962^2 + 15871^2 .

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

It is not a de Polignac number, because 255738085 - 211 = 255736037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162106 + ... + 163675.

It is an arithmetic number, because the mean of its divisors is an integer number (38605167).

Almost surely, 2255738085 is an apocalyptic number.

It is an amenable number.

255738085 is a deficient number, since it is larger than the sum of its proper divisors (53103251).

255738085 is a wasteful number, since it uses less digits than its factorization.

255738085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325943.

The product of its (nonzero) digits is 336000, while the sum is 43.

The square root of 255738085 is about 15991.8130616888. The cubic root of 255738085 is about 634.7438030699.

The spelling of 255738085 in words is "two hundred fifty-five million, seven hundred thirty-eight thousand, eighty-five".

Divisors: 1 5 157 785 325781 1628905 51147617 255738085