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22553230 = 257246027
BaseRepresentation
bin101011000001…
…0001010001110
31120102211012211
41112002022032
521233200410
62123221034
7362461600
oct126021216
946384184
1022553230
1111804637
12767777a
13489860b
142dd1170
151ea768a
hex158228e

22553230 has 24 divisors (see below), whose sum is σ = 47224728. Its totient is φ = 7732368.

The previous prime is 22553227. The next prime is 22553231. The reversal of 22553230 is 3235522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22553231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22524 + ... + 23503.

It is an arithmetic number, because the mean of its divisors is an integer number (1967697).

Almost surely, 222553230 is an apocalyptic number.

22553230 is an abundant number, since it is smaller than the sum of its proper divisors (24671498).

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

22553230 is a wasteful number, since it uses less digits than its factorization.

22553230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46048 (or 46041 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 22553230 is about 4749.0241102778. The cubic root of 22553230 is about 282.5332615443.

Adding to 22553230 its reverse (3235522), we get a palindrome (25788752).

The spelling of 22553230 in words is "twenty-two million, five hundred fifty-three thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 46027 92054 230135 322189 460270 644378 1610945 2255323 3221890 4510646 11276615 22553230