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2212130 = 251571409
BaseRepresentation
bin1000011100000100100010
311011101110202
420130010202
51031242010
6115225202
724542234
oct10340442
94141422
102212130
111281008
128a8202
135c5b6b
14418254
152da6a5
hex21c122

2212130 has 16 divisors (see below), whose sum is σ = 4010040. Its totient is φ = 878592.

The previous prime is 2212127. The next prime is 2212141. The reversal of 2212130 is 312122.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 840889 + 1371241 = 917^2 + 1171^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 866 + ... + 2274.

22212130 is an apocalyptic number.

2212130 is a deficient number, since it is larger than the sum of its proper divisors (1797910).

2212130 is a wasteful number, since it uses less digits than its factorization.

2212130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2212130 is about 1487.3230987247. The cubic root of 2212130 is about 130.2977396555.

Adding to 2212130 its reverse (312122), we get a palindrome (2524252).

The spelling of 2212130 in words is "two million, two hundred twelve thousand, one hundred thirty".

Divisors: 1 2 5 10 157 314 785 1409 1570 2818 7045 14090 221213 442426 1106065 2212130