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268488307 = 739363313
BaseRepresentation
bin10000000000001…
…100111001110011
3200201012121201101
4100000030321303
51022213111212
642350345231
76440053513
oct2000147163
9621177641
10268488307
1112861126a
1275abb217
1343816a29
142792d843
1518887157
hex1000ce73

268488307 has 4 divisors (see below), whose sum is σ = 268852360. Its totient is φ = 268124256.

The previous prime is 268488281. The next prime is 268488323. The reversal of 268488307 is 703884862.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 268488307 - 211 = 268486259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268488397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180918 + ... + 182395.

It is an arithmetic number, because the mean of its divisors is an integer number (67213090).

Almost surely, 2268488307 is an apocalyptic number.

268488307 is a deficient number, since it is larger than the sum of its proper divisors (364053).

268488307 is an equidigital number, since it uses as much as digits as its factorization.

268488307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364052.

The product of its (nonzero) digits is 516096, while the sum is 46.

The square root of 268488307 is about 16385.6128051410. The cubic root of 268488307 is about 645.1219103339.

The spelling of 268488307 in words is "two hundred sixty-eight million, four hundred eighty-eight thousand, three hundred seven".

Divisors: 1 739 363313 268488307