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22842028 = 22111989307
BaseRepresentation
bin101011100100…
…0101010101100
31120222111101001
41113020222230
521321421103
62133330044
7365103556
oct127105254
946874331
1022842028
1111991610
127796924
134969bc1
1430684d6
15201301d
hex15c8aac

22842028 has 48 divisors (see below), whose sum is σ = 46569600. Its totient is φ = 9694080.

The previous prime is 22841983. The next prime is 22842031. The reversal of 22842028 is 82024822.

It is a junction number, because it is equal to n+sod(n) for n = 22841987 and 22842005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74251 + ... + 74557.

It is an arithmetic number, because the mean of its divisors is an integer number (970200).

Almost surely, 222842028 is an apocalyptic number.

It is an amenable number.

22842028 is an abundant number, since it is smaller than the sum of its proper divisors (23727572).

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

22842028 is a wasteful number, since it uses less digits than its factorization.

22842028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 22842028 is about 4779.3334263263. Note that the first 3 decimals coincide. The cubic root of 22842028 is about 283.7341127164.

The spelling of 22842028 in words is "twenty-two million, eight hundred forty-two thousand, twenty-eight".

Divisors: 1 2 4 11 19 22 38 44 76 89 178 209 307 356 418 614 836 979 1228 1691 1958 3377 3382 3916 5833 6754 6764 11666 13508 18601 23332 27323 37202 54646 64163 74404 109292 128326 256652 300553 519137 601106 1038274 1202212 2076548 5710507 11421014 22842028