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255033881 = 17113132761
BaseRepresentation
bin11110011001110…
…00001000011001
3122202220001201022
433030320020121
51010242041011
641150132225
76214516004
oct1714701031
9582801638
10255033881
11120a61803
12714b1075
1340ab5a2b
1425c2a53b
15175ca8db
hexf338219

255033881 has 8 divisors (see below), whose sum is σ = 272427624. Its totient is φ = 237905920.

The previous prime is 255033853. The next prime is 255033943. The reversal of 255033881 is 188330552.

It can be written as a sum of positive squares in 4 ways, for example, as 14318656 + 240715225 = 3784^2 + 15515^2 .

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-255033881 is a prime.

It is a super-2 number, since 2×2550338812 = 130084560915844322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255033811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64460 + ... + 68301.

It is an arithmetic number, because the mean of its divisors is an integer number (34053453).

Almost surely, 2255033881 is an apocalyptic number.

It is an amenable number.

255033881 is a deficient number, since it is larger than the sum of its proper divisors (17393743).

255033881 is a wasteful number, since it uses less digits than its factorization.

255033881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132891.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 255033881 is about 15969.7802426959. The cubic root of 255033881 is about 634.1606543217.

The spelling of 255033881 in words is "two hundred fifty-five million, thirty-three thousand, eight hundred eighty-one".

Divisors: 1 17 113 1921 132761 2256937 15001993 255033881