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268280235 = 3351987261
BaseRepresentation
bin11111111110110…
…10000110101011
3200200211001022000
433333122012223
51022134431420
642342102043
76435226056
oct1777320653
9620731260
10268280235
11128489a03
1275a1a923
1343773102
14278b7a9d
1518845690
hexffda1ab

268280235 has 16 divisors (see below), whose sum is σ = 476942880. Its totient is φ = 143082720.

The previous prime is 268280227. The next prime is 268280237. The reversal of 268280235 is 532082862.

It is not a de Polignac number, because 268280235 - 23 = 268280227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 268280235.

It is not an unprimeable number, because it can be changed into a prime (268280237) 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 15 ways as a sum of consecutive naturals, for example, 993496 + ... + 993765.

It is an arithmetic number, because the mean of its divisors is an integer number (29808930).

Almost surely, 2268280235 is an apocalyptic number.

268280235 is a deficient number, since it is larger than the sum of its proper divisors (208662645).

268280235 is a wasteful number, since it uses less digits than its factorization.

268280235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987275 (or 1987269 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 268280235 is about 16379.2623460277. The cubic root of 268280235 is about 644.9552159279.

The spelling of 268280235 in words is "two hundred sixty-eight million, two hundred eighty thousand, two hundred thirty-five".

Divisors: 1 3 5 9 15 27 45 135 1987261 5961783 9936305 17885349 29808915 53656047 89426745 268280235