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255430434 = 23722929959
BaseRepresentation
bin11110011100110…
…00111100100010
3122210122012200110
433032120330202
51010342233214
641202432150
76221060100
oct1716307442
9583565613
10255430434
11121202736
1271662656
1340bc438c
1425cd0c70
1517658159
hexf398f22

255430434 has 48 divisors (see below), whose sum is σ = 614779200. Its totient is φ = 70461216.

The previous prime is 255430393. The next prime is 255430459. The reversal of 255430434 is 434034552.

It is a super-2 number, since 2×2554304342 = 130489413226856712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6454 + ... + 23505.

It is an arithmetic number, because the mean of its divisors is an integer number (12807900).

Almost surely, 2255430434 is an apocalyptic number.

255430434 is an abundant number, since it is smaller than the sum of its proper divisors (359348766).

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

255430434 is a wasteful number, since it uses less digits than its factorization.

255430434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30007 (or 30000 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

The square root of 255430434 is about 15982.1911514035. The cubic root of 255430434 is about 634.4891702558.

Adding to 255430434 its reverse (434034552), we get a palindrome (689464986).

The spelling of 255430434 in words is "two hundred fifty-five million, four hundred thirty thousand, four hundred thirty-four".

Divisors: 1 2 3 6 7 14 21 29 42 49 58 87 98 147 174 203 294 406 609 1218 1421 2842 4263 8526 29959 59918 89877 179754 209713 419426 629139 868811 1258278 1467991 1737622 2606433 2935982 4403973 5212866 6081677 8807946 12163354 18245031 36490062 42571739 85143478 127715217 255430434