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222830 = 2522283
BaseRepresentation
bin110110011001101110
3102022122222
4312121232
524112310
64435342
71615436
oct663156
9368588
10222830
11142463
12a8b52
137a56a
145b2c6
1546055
hex3666e

222830 has 8 divisors (see below), whose sum is σ = 401112. Its totient is φ = 89128.

The previous prime is 222823. The next prime is 222839. The reversal of 222830 is 38222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 222799 and 222808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222839) 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 3 ways as a sum of consecutive naturals, for example, 11132 + ... + 11151.

It is an arithmetic number, because the mean of its divisors is an integer number (50139).

2222830 is an apocalyptic number.

222830 is a deficient number, since it is larger than the sum of its proper divisors (178282).

222830 is a wasteful number, since it uses less digits than its factorization.

222830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22290.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 222830 is about 472.0487262985. The cubic root of 222830 is about 60.6258564374.

The spelling of 222830 in words is "two hundred twenty-two thousand, eight hundred thirty".

Divisors: 1 2 5 10 22283 44566 111415 222830