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268041715 = 553608343
BaseRepresentation
bin11111111100111…
…11110111110011
3200200100221002221
433332133313303
51022104313330
642333021511
76433213504
oct1776376763
9620327087
10268041715
11128336787
1275924897
13436bb686
1427854bab
15187e9b7a
hexff9fdf3

268041715 has 4 divisors (see below), whose sum is σ = 321650064. Its totient is φ = 214433368.

The previous prime is 268041713. The next prime is 268041731. The reversal of 268041715 is 517140862.

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 268041715 - 21 = 268041713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268041713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26804167 + ... + 26804176.

It is an arithmetic number, because the mean of its divisors is an integer number (80412516).

Almost surely, 2268041715 is an apocalyptic number.

268041715 is a deficient number, since it is larger than the sum of its proper divisors (53608349).

268041715 is an equidigital number, since it uses as much as digits as its factorization.

268041715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53608348.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 268041715 is about 16371.9795687632. The cubic root of 268041715 is about 644.7640224040.

The spelling of 268041715 in words is "two hundred sixty-eight million, forty-one thousand, seven hundred fifteen".

Divisors: 1 5 53608343 268041715