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22168120 = 2351389479
BaseRepresentation
bin101010010010…
…0001000111000
31112201020221111
41110210020320
521133334440
62111050104
7356266042
oct124441070
945636844
1022168120
1111571267
127510934
134792240
142d30a92
151e2d4ea
hex1524238

22168120 has 64 divisors (see below), whose sum is σ = 54432000. Its totient is φ = 8076288.

The previous prime is 22168109. The next prime is 22168121. The reversal of 22168120 is 2186122.

It is a junction number, because it is equal to n+sod(n) for n = 22168091 and 22168100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22168121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46041 + ... + 46519.

It is an arithmetic number, because the mean of its divisors is an integer number (850500).

Almost surely, 222168120 is an apocalyptic number.

22168120 is a gapful number since it is divisible by the number (20) 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 22168120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27216000).

22168120 is an abundant number, since it is smaller than the sum of its proper divisors (32263880).

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

22168120 is a wasteful number, since it uses less digits than its factorization.

22168120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592 (or 588 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 22168120 is about 4708.3033037390. The cubic root of 22168120 is about 280.9158784512.

The spelling of 22168120 in words is "twenty-two million, one hundred sixty-eight thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 89 104 130 178 260 356 445 479 520 712 890 958 1157 1780 1916 2314 2395 3560 3832 4628 4790 5785 6227 9256 9580 11570 12454 19160 23140 24908 31135 42631 46280 49816 62270 85262 124540 170524 213155 249080 341048 426310 554203 852620 1108406 1705240 2216812 2771015 4433624 5542030 11084060 22168120