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22102230 = 235736741
BaseRepresentation
bin101010001010…
…0000011010110
31112120220120010
41110110003112
521124232410
62105421050
7355602663
oct124240326
945526503
1022102230
1111526807
12749a786
13476b257
142d14a6a
151e18c20
hex15140d6

22102230 has 16 divisors (see below), whose sum is σ = 53045424. Its totient is φ = 5893920.

The previous prime is 22102217. The next prime is 22102237. The reversal of 22102230 is 3220122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22102237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 368341 + ... + 368400.

It is an arithmetic number, because the mean of its divisors is an integer number (3315339).

Almost surely, 222102230 is an apocalyptic number.

22102230 is an abundant number, since it is smaller than the sum of its proper divisors (30943194).

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

22102230 is a wasteful number, since it uses less digits than its factorization.

22102230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736751.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 22102230 is about 4701.3008837980. The cubic root of 22102230 is about 280.6372814370.

Adding to 22102230 its reverse (3220122), we get a palindrome (25322352).

The spelling of 22102230 in words is "twenty-two million, one hundred two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 736741 1473482 2210223 3683705 4420446 7367410 11051115 22102230