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255331441 = 2311101367
BaseRepresentation
bin11110011100000…
…00110001110001
3122210110011220001
433032000301301
51010331101231
641200350001
76220165351
oct1716006161
9583404801
10255331441
11121145322
1271615301
1340b8b2c1
1425ca6b61
1517638b61
hexf380c71

255331441 has 4 divisors (see below), whose sum is σ = 266432832. Its totient is φ = 244230052.

The previous prime is 255331423. The next prime is 255331459. The reversal of 255331441 is 144133552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (255331423) and next prime (255331459).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-255331441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255331411) 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 3 ways as a sum of consecutive naturals, for example, 5550661 + ... + 5550706.

It is an arithmetic number, because the mean of its divisors is an integer number (66608208).

Almost surely, 2255331441 is an apocalyptic number.

It is an amenable number.

255331441 is a deficient number, since it is larger than the sum of its proper divisors (11101391).

255331441 is a wasteful number, since it uses less digits than its factorization.

255331441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11101390.

The product of its digits is 7200, while the sum is 28.

The square root of 255331441 is about 15979.0938729328. The cubic root of 255331441 is about 634.4071934644.

Adding to 255331441 its reverse (144133552), we get a palindrome (399464993).

The spelling of 255331441 in words is "two hundred fifty-five million, three hundred thirty-one thousand, four hundred forty-one".

Divisors: 1 23 11101367 255331441