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8223250 = 253737127
BaseRepresentation
bin11111010111101000010010
3120110210011211
4133113220102
54101121000
6452130334
7126616330
oct37275022
916423154
108223250
114707282
1229069aa
13191bc39
141140b50
15ac67ba
hex7d7a12

8223250 has 64 divisors (see below), whose sum is σ = 18210816. Its totient is φ = 2721600.

The previous prime is 8223217. The next prime is 8223251. The reversal of 8223250 is 523228.

It is not an unprimeable number, because it can be changed into a prime (8223251) 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 31 ways as a sum of consecutive naturals, for example, 64687 + ... + 64813.

It is an arithmetic number, because the mean of its divisors is an integer number (284544).

Almost surely, 28223250 is an apocalyptic number.

8223250 is an abundant number, since it is smaller than the sum of its proper divisors (9987566).

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

8223250 is a wasteful number, since it uses less digits than its factorization.

8223250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 8223250 is about 2867.6209651905. The cubic root of 8223250 is about 201.8433743235.

Subtracting from 8223250 its sum of digits (22), we obtain a palindrome (8223228).

Adding to 8223250 its reverse (523228), we get a palindrome (8746478).

It can be divided in two parts, 82 and 23250, that added together give a palindrome (23332).

The spelling of 8223250 in words is "eight million, two hundred twenty-three thousand, two hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 37 50 70 74 125 127 175 185 250 254 259 350 370 518 635 875 889 925 1270 1295 1750 1778 1850 2590 3175 4445 4625 4699 6350 6475 8890 9250 9398 12950 15875 22225 23495 31750 32375 32893 44450 46990 64750 65786 111125 117475 164465 222250 234950 328930 587375 822325 1174750 1644650 4111625 8223250