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22053860 = 2251102693
BaseRepresentation
bin101010000100…
…0001111100100
31112111110012122
41110020033210
521121210420
62104405112
7355311653
oct124101744
945443178
1022053860
11114a3434
127476798
13475222a
142d0119a
151e09725
hex15083e4

22053860 has 12 divisors (see below), whose sum is σ = 46313148. Its totient is φ = 8821536.

The previous prime is 22053841. The next prime is 22053881. The reversal of 22053860 is 6835022.

It can be written as a sum of positive squares in 2 ways, for example, as 8111104 + 13942756 = 2848^2 + 3734^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 551327 + ... + 551366.

It is an arithmetic number, because the mean of its divisors is an integer number (3859429).

Almost surely, 222053860 is an apocalyptic number.

22053860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22053860 is an abundant number, since it is smaller than the sum of its proper divisors (24259288).

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

22053860 is a wasteful number, since it uses less digits than its factorization.

22053860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102702 (or 1102700 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 22053860 is about 4696.1537453537. The cubic root of 22053860 is about 280.4324101072.

Adding to 22053860 its reverse (6835022), we get a palindrome (28888882).

The spelling of 22053860 in words is "twenty-two million, fifty-three thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 1102693 2205386 4410772 5513465 11026930 22053860