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22455230 = 257245827
BaseRepresentation
bin101010110101…
…0001110111110
31120020211210012
41111222032332
521222031410
62121143222
7361603100
oct125521676
946224705
1022455230
1111747a46
12762ab12
134862b25
142da7570
151e88605
hex156a3be

22455230 has 24 divisors (see below), whose sum is σ = 47019528. Its totient is φ = 7698768.

The previous prime is 22455221. The next prime is 22455269. The reversal of 22455230 is 3255422.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22455196 and 22455205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22424 + ... + 23403.

It is an arithmetic number, because the mean of its divisors is an integer number (1959147).

Almost surely, 222455230 is an apocalyptic number.

22455230 is an abundant number, since it is smaller than the sum of its proper divisors (24564298).

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

22455230 is a wasteful number, since it uses less digits than its factorization.

22455230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45848 (or 45841 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 22455230 is about 4738.6949680265. The cubic root of 22455230 is about 282.1234390769.

The spelling of 22455230 in words is "twenty-two million, four hundred fifty-five thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 45827 91654 229135 320789 458270 641578 1603945 2245523 3207890 4491046 11227615 22455230