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2268828 = 22321931107
BaseRepresentation
bin1000101001111010011100
311021021020200
420221322130
51040100303
6120343500
725166442
oct10517234
94237220
102268828
11130a671
12914b90
13615903
14430b92
152ec3a3
hex229e9c

2268828 has 72 divisors (see below), whose sum is σ = 6289920. Its totient is φ = 686880.

The previous prime is 2268793. The next prime is 2268829. The reversal of 2268828 is 8288622.

2268828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2268792 and 2268801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2268829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21151 + ... + 21257.

It is an arithmetic number, because the mean of its divisors is an integer number (87360).

22268828 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2268828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3144960).

2268828 is an abundant number, since it is smaller than the sum of its proper divisors (4021092).

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

2268828 is a wasteful number, since it uses less digits than its factorization.

2268828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167 (or 162 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 2268828 is about 1506.2629252557. The cubic root of 2268828 is about 131.4015609720.

The spelling of 2268828 in words is "two million, two hundred sixty-eight thousand, eight hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 19 31 36 38 57 62 76 93 107 114 124 171 186 214 228 279 321 342 372 428 558 589 642 684 963 1116 1178 1284 1767 1926 2033 2356 3317 3534 3852 4066 5301 6099 6634 7068 8132 9951 10602 12198 13268 18297 19902 21204 24396 29853 36594 39804 59706 63023 73188 119412 126046 189069 252092 378138 567207 756276 1134414 2268828