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22428048 = 243716581
BaseRepresentation
bin101010110001…
…1100110010000
31120012110111110
41111203212100
521220144143
62120413320
7361430616
oct125434620
946173443
1022428048
1111729585
127617240
134853646
142d9b6b6
151e80533
hex1563990

22428048 has 40 divisors (see below), whose sum is σ = 58764096. Its totient is φ = 7369600.

The previous prime is 22428041. The next prime is 22428061. The reversal of 22428048 is 84082422.

It is not an unprimeable number, because it can be changed into a prime (22428041) 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 7 ways as a sum of consecutive naturals, for example, 118 + ... + 6698.

Almost surely, 222428048 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 22428048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29382048).

22428048 is an abundant number, since it is smaller than the sum of its proper divisors (36336048).

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

22428048 is a wasteful number, since it uses less digits than its factorization.

22428048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6663 (or 6657 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 30.

The square root of 22428048 is about 4735.8260103175. The cubic root of 22428048 is about 282.0095565395.

The spelling of 22428048 in words is "twenty-two million, four hundred twenty-eight thousand, forty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 71 142 213 284 426 568 852 1136 1704 3408 6581 13162 19743 26324 39486 52648 78972 105296 157944 315888 467251 934502 1401753 1869004 2803506 3738008 5607012 7476016 11214024 22428048