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2283228 = 223929
BaseRepresentation
bin1000101101011011011100
311022000000000
420231123130
51041030403
6120534300
725256433
oct10553334
94260000
102283228
11131a472
12921390
1361c32c
1443611a
153017a3
hex22d6dc

2283228 has 60 divisors (see below), whose sum is σ = 6200040. Its totient is φ = 734832.

The previous prime is 2283227. The next prime is 2283301. The reversal of 2283228 is 8223822.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2283227) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 78718 + ... + 78746.

It is an arithmetic number, because the mean of its divisors is an integer number (103334).

22283228 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 2283228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3100020).

2283228 is an abundant number, since it is smaller than the sum of its proper divisors (3916812).

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

2283228 is an frugal number, since it uses more digits than its factorization.

2283228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60 (or 34 counting only the distinct ones).

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

The square root of 2283228 is about 1511.0354066004. The cubic root of 2283228 is about 131.6789719490.

The spelling of 2283228 in words is "two million, two hundred eighty-three thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 29 36 54 58 81 87 108 116 162 174 243 261 324 348 486 522 729 783 972 1044 1458 1566 2187 2349 2916 3132 4374 4698 6561 7047 8748 9396 13122 14094 19683 21141 26244 28188 39366 42282 63423 78732 84564 126846 190269 253692 380538 570807 761076 1141614 2283228