Search a number
-
+
255430395 = 33511219823
BaseRepresentation
bin11110011100110…
…00111011111011
3122210122012122000
433032120323323
51010342233040
641202432043
76221060013
oct1716307373
9583565560
10255430395
11121202700
1271662623
1340bc435c
1425cd0c43
1517658130
hexf398efb

255430395 has 96 divisors (see below), whose sum is σ = 526041600. Its totient is φ = 117184320.

The previous prime is 255430393. The next prime is 255430459. The reversal of 255430395 is 593034552.

255430395 is a `hidden beast` number, since 25 + 543 + 0 + 3 + 95 = 666.

It is not a de Polignac number, because 255430395 - 21 = 255430393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255430393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 309954 + ... + 310776.

It is an arithmetic number, because the mean of its divisors is an integer number (5479600).

Almost surely, 2255430395 is an apocalyptic number.

255430395 is an abundant number, since it is smaller than the sum of its proper divisors (270611205).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255430395 is a wasteful number, since it uses less digits than its factorization.

255430395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878 (or 861 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The square root of 255430395 is about 15982.1899312954. The cubic root of 255430395 is about 634.4891379638.

The spelling of 255430395 in words is "two hundred fifty-five million, four hundred thirty thousand, three hundred ninety-five".

Divisors: 1 3 5 9 11 15 19 27 33 45 55 57 95 99 121 135 165 171 209 285 297 363 495 513 605 627 823 855 1045 1089 1485 1815 1881 2299 2469 2565 3135 3267 4115 5445 5643 6897 7407 9053 9405 11495 12345 15637 16335 20691 22221 27159 28215 34485 37035 45265 46911 62073 78185 81477 99583 103455 111105 135795 140733 172007 234555 244431 298749 310365 407385 422199 497915 516021 703665 860035 896247 1222155 1493745 1548063 1892077 2110995 2580105 2688741 4481235 4644189 5676231 7740315 9460385 13443705 17028693 23220945 28381155 51086079 85143465 255430395