Search a number
-
+
228184849 = 263867623
BaseRepresentation
bin11011001100111…
…01001100010001
3120220100222202201
431212131030101
5431403403344
634350443201
75440352644
oct1546351421
9526328681
10228184849
11107893722
1264503501
1338375029
142243ba5b
15150754d4
hexd99d311

228184849 has 4 divisors (see below), whose sum is σ = 229052736. Its totient is φ = 227316964.

The previous prime is 228184843. The next prime is 228184867. The reversal of 228184849 is 948481822.

228184849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 228184849 - 225 = 194630417 is a prime.

It is a super-4 number, since 4×2281848494 (a number of 35 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228184799 and 228184808.

It is not an unprimeable number, because it can be changed into a prime (228184843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 433549 + ... + 434074.

It is an arithmetic number, because the mean of its divisors is an integer number (57263184).

Almost surely, 2228184849 is an apocalyptic number.

It is an amenable number.

228184849 is a deficient number, since it is larger than the sum of its proper divisors (867887).

228184849 is an equidigital number, since it uses as much as digits as its factorization.

228184849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867886.

The product of its digits is 294912, while the sum is 46.

The square root of 228184849 is about 15105.7885924569. The cubic root of 228184849 is about 611.0765268717.

The spelling of 228184849 in words is "two hundred twenty-eight million, one hundred eighty-four thousand, eight hundred forty-nine".

Divisors: 1 263 867623 228184849