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268000135 = 5134123079
BaseRepresentation
bin11111111100101…
…01101110000111
3200200021211001221
433332111232013
51022102001020
642332101211
76432651334
oct1776255607
9620254057
10268000135
11128308517
1275904807
13436a5780
142784398b
15187dc6aa
hexff95b87

268000135 has 8 divisors (see below), whose sum is σ = 346338720. Its totient is φ = 197907744.

The previous prime is 268000081. The next prime is 268000141. The reversal of 268000135 is 531000862.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 268000135 - 213 = 267991943 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2061475 + ... + 2061604.

It is an arithmetic number, because the mean of its divisors is an integer number (43292340).

Almost surely, 2268000135 is an apocalyptic number.

268000135 is a deficient number, since it is larger than the sum of its proper divisors (78338585).

268000135 is a wasteful number, since it uses less digits than its factorization.

268000135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4123097.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 268000135 is about 16370.7096669631. The cubic root of 268000135 is about 644.7306809837.

Adding to 268000135 its reverse (531000862), we get a palindrome (799000997).

The spelling of 268000135 in words is "two hundred sixty-eight million, one hundred thirty-five", and thus it is an aban number.

Divisors: 1 5 13 65 4123079 20615395 53600027 268000135