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6228220 = 225893499
BaseRepresentation
bin10111110000100011111100
3102201102111211
4113300203330
53043300340
6341254204
7103640035
oct27604374
912642454
106228220
113574399
122104364
1313a0b4b
14b81a8c
158305ea
hex5f08fc

6228220 has 24 divisors (see below), whose sum is σ = 13230000. Its totient is φ = 2462592.

The previous prime is 6228203. The next prime is 6228223. The reversal of 6228220 is 228226.

It is a junction number, because it is equal to n+sod(n) for n = 6228191 and 6228200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6228223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31 + ... + 3529.

It is an arithmetic number, because the mean of its divisors is an integer number (551250).

Almost surely, 26228220 is an apocalyptic number.

It is an amenable number.

6228220 is an abundant number, since it is smaller than the sum of its proper divisors (7001780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6228220 is a wasteful number, since it uses less digits than its factorization.

6228220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3597 (or 3595 counting only the distinct ones).

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

The square root of 6228220 is about 2495.6401984260. The cubic root of 6228220 is about 183.9873573544.

It can be divided in two parts, 62 and 28220, that added together give a palindrome (28282).

The spelling of 6228220 in words is "six million, two hundred twenty-eight thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 89 178 356 445 890 1780 3499 6998 13996 17495 34990 69980 311411 622822 1245644 1557055 3114110 6228220