Search a number
-
+
255311441 = 7115373857
BaseRepresentation
bin11110011011110…
…11111001010001
3122210102011110022
433031323321101
51010324431231
641200113225
76220053140
oct1715737121
9583364408
10255311441
111211312a0
1271605815
1340b82178
1425c9d757
1517632c7b
hexf37be51

255311441 has 32 divisors (see below), whose sum is σ = 329142528. Its totient is φ = 192291840.

The previous prime is 255311429. The next prime is 255311449. The reversal of 255311441 is 144113552.

It is a cyclic number.

It is not a de Polignac number, because 255311441 - 26 = 255311377 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 255311441.

It is not an unprimeable number, because it can be changed into a prime (255311449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 297485 + ... + 298341.

It is an arithmetic number, because the mean of its divisors is an integer number (10285704).

Almost surely, 2255311441 is an apocalyptic number.

It is an amenable number.

255311441 is a deficient number, since it is larger than the sum of its proper divisors (73831087).

255311441 is a wasteful number, since it uses less digits than its factorization.

255311441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001.

The product of its digits is 2400, while the sum is 26.

The square root of 255311441 is about 15978.4680429633. The cubic root of 255311441 is about 634.3906287526.

Adding to 255311441 its reverse (144113552), we get a palindrome (399424993).

The spelling of 255311441 in words is "two hundred fifty-five million, three hundred eleven thousand, four hundred forty-one".

Divisors: 1 7 11 53 73 77 371 511 583 803 857 3869 4081 5621 5999 9427 27083 42559 45421 62561 65989 297913 317947 437927 499631 688171 3315733 3497417 4817197 23210131 36473063 255311441