Search a number
-
+
22284668 = 2271037727
BaseRepresentation
bin101010100000…
…0100101111100
31112221011211002
41111000211330
521201102133
62113345432
7360262610
oct125004574
945834732
1022284668
111164088a
127568278
1348032c3
142d61340
151e52ce8
hex154097c

22284668 has 24 divisors (see below), whose sum is σ = 45007872. Its totient is φ = 9456624.

The previous prime is 22284667. The next prime is 22284709. The reversal of 22284668 is 86648222.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22284667) 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, 980 + ... + 6747.

It is an arithmetic number, because the mean of its divisors is an integer number (1875328).

Almost surely, 222284668 is an apocalyptic number.

22284668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22284668 is an abundant number, since it is smaller than the sum of its proper divisors (22723204).

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

22284668 is a wasteful number, since it uses less digits than its factorization.

22284668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7841 (or 7839 counting only the distinct ones).

The product of its digits is 73728, while the sum is 38.

The square root of 22284668 is about 4720.6639363547. The cubic root of 22284668 is about 281.4073195247.

The spelling of 22284668 in words is "twenty-two million, two hundred eighty-four thousand, six hundred sixty-eight".

Divisors: 1 2 4 7 14 28 103 206 412 721 1442 2884 7727 15454 30908 54089 108178 216356 795881 1591762 3183524 5571167 11142334 22284668