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2228548 = 227195971
BaseRepresentation
bin1000100000000101000100
311012012222211
420200011010
51032303143
6115433204
724641140
oct10400504
94165884
102228548
111292383
128b5804
1360048a
14420220
152e049d
hex220144

2228548 has 48 divisors (see below), whose sum is σ = 4838400. Its totient is φ = 876960.

The previous prime is 2228543. The next prime is 2228549. The reversal of 2228548 is 8458222.

Its product of digits (10240) is a multiple of the sum of its prime factors (160).

It is not an unprimeable number, because it can be changed into a prime (2228543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31353 + ... + 31423.

It is an arithmetic number, because the mean of its divisors is an integer number (100800).

22228548 is an apocalyptic number.

2228548 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 2228548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2419200).

2228548 is an abundant number, since it is smaller than the sum of its proper divisors (2609852).

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

2228548 is a wasteful number, since it uses less digits than its factorization.

2228548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 158 counting only the distinct ones).

The product of its digits is 10240, while the sum is 31.

The square root of 2228548 is about 1492.8322075840. The cubic root of 2228548 is about 130.6192936466.

The spelling of 2228548 in words is "two million, two hundred twenty-eight thousand, five hundred forty-eight".

Divisors: 1 2 4 7 14 19 28 38 59 71 76 118 133 142 236 266 284 413 497 532 826 994 1121 1349 1652 1988 2242 2698 4189 4484 5396 7847 8378 9443 15694 16756 18886 29323 31388 37772 58646 79591 117292 159182 318364 557137 1114274 2228548