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268028053 = 713775043
BaseRepresentation
bin11111111100111…
…00100010010101
3200200100020100221
433332130202111
51022103344203
642332434341
76433125616
oct1776344225
9620306327
10268028053
11128327497
12759189b1
13436b53a7
142784dc0d
15187e5abd
hexff9c895

268028053 has 4 divisors (see below), whose sum is σ = 271803168. Its totient is φ = 264252940.

The previous prime is 268028027. The next prime is 268028071. The reversal of 268028053 is 350820862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-268028053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268028023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1887451 + ... + 1887592.

It is an arithmetic number, because the mean of its divisors is an integer number (67950792).

Almost surely, 2268028053 is an apocalyptic number.

It is an amenable number.

268028053 is a deficient number, since it is larger than the sum of its proper divisors (3775115).

268028053 is an equidigital number, since it uses as much as digits as its factorization.

268028053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3775114.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 268028053 is about 16371.5623261801. The cubic root of 268028053 is about 644.7530677462.

The spelling of 268028053 in words is "two hundred sixty-eight million, twenty-eight thousand, fifty-three".

Divisors: 1 71 3775043 268028053