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2830188 = 223235849
BaseRepresentation
bin1010110010111101101100
312022210021210
422302331230
51211031223
6140354420
733025164
oct12627554
95283253
102830188
1116633a9
12b45a10
1378128a
145395a4
153ad893
hex2b2f6c

2830188 has 12 divisors (see below), whose sum is σ = 6603800. Its totient is φ = 943392.

The previous prime is 2830187. The next prime is 2830229. The reversal of 2830188 is 8810382.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (2830181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117913 + ... + 117936.

22830188 is an apocalyptic number.

It is an amenable number.

2830188 is an abundant number, since it is smaller than the sum of its proper divisors (3773612).

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

2830188 is a wasteful number, since it uses less digits than its factorization.

2830188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235856 (or 235854 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 2830188 is about 1682.3162603981. The cubic root of 2830188 is about 141.4506980700.

The spelling of 2830188 in words is "two million, eight hundred thirty thousand, one hundred eighty-eight".

Divisors: 1 2 3 4 6 12 235849 471698 707547 943396 1415094 2830188