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2431228 = 223971531
BaseRepresentation
bin1001010001100011111100
311120112000111
421101203330
51110244403
6124035404
726444062
oct11214374
94515014
102431228
111410688
12992b64
136717c7
14474032
1533056d
hex2518fc

2431228 has 12 divisors (see below), whose sum is σ = 4268152. Its totient is φ = 1211760.

The previous prime is 2431223. The next prime is 2431241. The reversal of 2431228 is 8221342.

2431228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2431199 and 2431208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2431223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 823 + ... + 2353.

22431228 is an apocalyptic number.

It is an amenable number.

2431228 is a deficient number, since it is larger than the sum of its proper divisors (1836924).

2431228 is a wasteful number, since it uses less digits than its factorization.

2431228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1932 (or 1930 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 2431228 is about 1559.2395582463. The cubic root of 2431228 is about 134.4647853526.

The spelling of 2431228 in words is "two million, four hundred thirty-one thousand, two hundred twenty-eight".

Divisors: 1 2 4 397 794 1531 1588 3062 6124 607807 1215614 2431228