Search a number
-
+
22448860 = 2257222907
BaseRepresentation
bin101010110100…
…0101011011100
31120020112001021
41111220223130
521221330420
62121053524
7361545400
oct125505334
946215037
1022448860
1111743185
1276272a4
13485cc65
142da5100
151e867aa
hex1568adc

22448860 has 36 divisors (see below), whose sum is σ = 54841752. Its totient is φ = 7696416.

The previous prime is 22448843. The next prime is 22448863. The reversal of 22448860 is 6884422.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22448863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10474 + ... + 12433.

It is an arithmetic number, because the mean of its divisors is an integer number (1523382).

Almost surely, 222448860 is an apocalyptic number.

22448860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22448860 is an abundant number, since it is smaller than the sum of its proper divisors (32392892).

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

22448860 is a wasteful number, since it uses less digits than its factorization.

22448860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22930 (or 22921 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 22448860 is about 4738.0227943732. The cubic root of 22448860 is about 282.0967593788.

The spelling of 22448860 in words is "twenty-two million, four hundred forty-eight thousand, eight hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 70 98 140 196 245 490 980 22907 45814 91628 114535 160349 229070 320698 458140 641396 801745 1122443 1603490 2244886 3206980 4489772 5612215 11224430 22448860