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2888228 = 227196189
BaseRepresentation
bin1011000001001000100100
312102201220102
423001020210
51214410403
6141523232
733356330
oct13011044
95381812
102888228
1116a2a72
12b73518
137a1815
145527c0
153c0b88
hex2c1224

2888228 has 48 divisors (see below), whose sum is σ = 6249600. Its totient is φ = 1140480.

The previous prime is 2888213. The next prime is 2888231. The reversal of 2888228 is 8228882.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a d-powerful number, because it can be written as 22 + 83 + 84 + 86 + 25 + 219 + 87 .

It is a junction number, because it is equal to n+sod(n) for n = 2888191 and 2888200.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 32408 + ... + 32496.

It is an arithmetic number, because the mean of its divisors is an integer number (130200).

22888228 is an apocalyptic number.

2888228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2888228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3124800).

2888228 is an abundant number, since it is smaller than the sum of its proper divisors (3361372).

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

2888228 is a wasteful number, since it uses less digits than its factorization.

2888228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180 (or 178 counting only the distinct ones).

The product of its digits is 32768, while the sum is 38.

The square root of 2888228 is about 1699.4787436152. The cubic root of 2888228 is about 142.4110946412.

The spelling of 2888228 in words is "two million, eight hundred eighty-eight thousand, two hundred twenty-eight".

Divisors: 1 2 4 7 14 19 28 38 61 76 89 122 133 178 244 266 356 427 532 623 854 1159 1246 1691 1708 2318 2492 3382 4636 5429 6764 8113 10858 11837 16226 21716 23674 32452 38003 47348 76006 103151 152012 206302 412604 722057 1444114 2888228