Search a number
-
+
2828223 = 33312109
BaseRepresentation
bin1010110010011110111111
312022200121000
422302132333
51211000343
6140341343
733016356
oct12623677
95280530
102828223
111661982
12b44853
13780408
1453899d
153aced3
hex2b27bf

2828223 has 24 divisors (see below), whose sum is σ = 4369200. Its totient is φ = 1807920.

The previous prime is 2828219. The next prime is 2828237. The reversal of 2828223 is 3228282.

It is not a de Polignac number, because 2828223 - 22 = 2828219 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2828123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25893 + ... + 26001.

It is an arithmetic number, because the mean of its divisors is an integer number (182050).

22828223 is an apocalyptic number.

2828223 is a deficient number, since it is larger than the sum of its proper divisors (1540977).

2828223 is a wasteful number, since it uses less digits than its factorization.

2828223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180 (or 143 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 2828223 is about 1681.7321427623. The cubic root of 2828223 is about 141.4179540764.

The spelling of 2828223 in words is "two million, eight hundred twenty-eight thousand, two hundred twenty-three".

Divisors: 1 3 9 27 31 93 109 279 327 837 961 981 2883 2943 3379 8649 10137 25947 30411 91233 104749 314247 942741 2828223