Search a number
-
+
228825843 = 3433917579
BaseRepresentation
bin11011010001110…
…01101011110011
3120221120120001020
431220321223303
5432034411333
634412310523
75445662511
oct1550715363
9527516036
10228825843
11108191274
1264772443
133853aa0c
14225674b1
15151503b3
hexda39af3

228825843 has 8 divisors (see below), whose sum is σ = 305188800. Its totient is φ = 152506728.

The previous prime is 228825809. The next prime is 228825847. The reversal of 228825843 is 348528822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 228825843 - 213 = 228817651 is a prime.

It is a super-2 number, since 2×2288258432 = 104722532849321298, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 228825795 and 228825804.

It is not an unprimeable number, because it can be changed into a prime (228825847) 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 7 ways as a sum of consecutive naturals, for example, 4228 + ... + 21806.

It is an arithmetic number, because the mean of its divisors is an integer number (38148600).

Almost surely, 2228825843 is an apocalyptic number.

228825843 is a deficient number, since it is larger than the sum of its proper divisors (76362957).

228825843 is a wasteful number, since it uses less digits than its factorization.

228825843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21921.

The product of its digits is 245760, while the sum is 42.

The square root of 228825843 is about 15126.9905467016. The cubic root of 228825843 is about 611.6481835628.

The spelling of 228825843 in words is "two hundred twenty-eight million, eight hundred twenty-five thousand, eight hundred forty-three".

Divisors: 1 3 4339 13017 17579 52737 76275281 228825843