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255434105 = 551086821
BaseRepresentation
bin11110011100110…
…01110101111001
3122210122101201102
433032121311321
51010342342410
641202501145
76221103563
oct1716316571
9583571642
10255434105
11121205473
12716647b5
1340bc5c54
1425cd2333
15176592a5
hexf399d79

255434105 has 4 divisors (see below), whose sum is σ = 306520932. Its totient is φ = 204347280.

The previous prime is 255434093. The next prime is 255434161. The reversal of 255434105 is 501434552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 160098409 + 95335696 = 12653^2 + 9764^2 .

It is not a de Polignac number, because 255434105 - 24 = 255434089 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25543406 + ... + 25543415.

It is an arithmetic number, because the mean of its divisors is an integer number (76630233).

Almost surely, 2255434105 is an apocalyptic number.

It is an amenable number.

255434105 is a deficient number, since it is larger than the sum of its proper divisors (51086827).

255434105 is an equidigital number, since it uses as much as digits as its factorization.

255434105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51086826.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 255434105 is about 15982.3059975712. The cubic root of 255434105 is about 634.4922098291.

Adding to 255434105 its reverse (501434552), we get a palindrome (756868657).

The spelling of 255434105 in words is "two hundred fifty-five million, four hundred thirty-four thousand, one hundred five".

Divisors: 1 5 51086821 255434105