Search a number
-
+
228144275 = 529125771
BaseRepresentation
bin11011001100100…
…11010010010011
3120220021221002222
431212103102103
5431401104100
634345531255
75440123442
oct1546232223
9526257088
10228144275
11107866197
12644a3b2b
133835c718
142242ad59
1515068485
hexd993493

228144275 has 6 divisors (see below), whose sum is σ = 282898932. Its totient is φ = 182515400.

The previous prime is 228144173. The next prime is 228144281. The reversal of 228144275 is 572441822.

228144275 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 228144275 - 28 = 228144019 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4562861 + ... + 4562910.

It is an arithmetic number, because the mean of its divisors is an integer number (47149822).

Almost surely, 2228144275 is an apocalyptic number.

228144275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

228144275 is a deficient number, since it is larger than the sum of its proper divisors (54754657).

228144275 is an equidigital number, since it uses as much as digits as its factorization.

228144275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9125781 (or 9125776 counting only the distinct ones).

The product of its digits is 35840, while the sum is 35.

The square root of 228144275 is about 15104.4455376555. The cubic root of 228144275 is about 611.0403058156.

The spelling of 228144275 in words is "two hundred twenty-eight million, one hundred forty-four thousand, two hundred seventy-five".

Divisors: 1 5 25 9125771 45628855 228144275