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4231228 = 221057807
BaseRepresentation
bin10000001001000000111100
321221222011011
4100021000330
52040344403
6230405004
750651641
oct20110074
97858134
104231228
11242aa91
121500764
13b51bb1
147c1dc8
15588a6d
hex40903c

4231228 has 6 divisors (see below), whose sum is σ = 7404656. Its totient is φ = 2115612.

The previous prime is 4231219. The next prime is 4231229. The reversal of 4231228 is 8221324.

It is a d-powerful number, because it can be written as 42 + 24 + 33 + 1 + 215 + 222 + 84 .

It is a junction number, because it is equal to n+sod(n) for n = 4231199 and 4231208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4231229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528900 + ... + 528907.

Almost surely, 24231228 is an apocalyptic number.

It is an amenable number.

4231228 is a deficient number, since it is larger than the sum of its proper divisors (3173428).

4231228 is a wasteful number, since it uses less digits than its factorization.

4231228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057811 (or 1057809 counting only the distinct ones).

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

The square root of 4231228 is about 2056.9948954725. The cubic root of 4231228 is about 161.7417518271.

The spelling of 4231228 in words is "four million, two hundred thirty-one thousand, two hundred twenty-eight".

Divisors: 1 2 4 1057807 2115614 4231228