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228768119 = 349965381
BaseRepresentation
bin11011010001010…
…11100101110111
3120221110121212022
431220223211313
5432031034434
634411143355
75445332306
oct1550534567
9527417768
10228768119
11108151968
1264744b5b
133851a668
142255043d
151513d22e
hexda2b977

228768119 has 4 divisors (see below), whose sum is σ = 228837000. Its totient is φ = 228699240.

The previous prime is 228768109. The next prime is 228768139. The reversal of 228768119 is 911867822.

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 228768119 - 212 = 228764023 is a prime.

It is a super-2 number, since 2×2287681192 = 104669704541596322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 228768119.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228768109) 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, 29192 + ... + 36189.

It is an arithmetic number, because the mean of its divisors is an integer number (57209250).

Almost surely, 2228768119 is an apocalyptic number.

228768119 is a deficient number, since it is larger than the sum of its proper divisors (68881).

228768119 is an equidigital number, since it uses as much as digits as its factorization.

228768119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68880.

The product of its digits is 96768, while the sum is 44.

The square root of 228768119 is about 15125.0824460563. The cubic root of 228768119 is about 611.5967474305.

The spelling of 228768119 in words is "two hundred twenty-eight million, seven hundred sixty-eight thousand, one hundred nineteen".

Divisors: 1 3499 65381 228768119