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2142230 = 25298389
BaseRepresentation
bin1000001011000000010110
311000211120212
420023000112
51022022410
6113525422
724131366
oct10130026
94024525
102142230
111233542
12873872
135a00bc
143da9a6
152c4b05
hex20b016

2142230 has 32 divisors (see below), whose sum is σ = 4082400. Its totient is φ = 808192.

The previous prime is 2142229. The next prime is 2142241. The reversal of 2142230 is 322412.

It is a Curzon number.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 24026 + ... + 24114.

It is an arithmetic number, because the mean of its divisors is an integer number (127575).

22142230 is an apocalyptic number.

2142230 is a deficient number, since it is larger than the sum of its proper divisors (1940170).

2142230 is a wasteful number, since it uses less digits than its factorization.

2142230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2142230 is about 1463.6358836815. The cubic root of 2142230 is about 128.9106205375.

Adding to 2142230 its reverse (322412), we get a palindrome (2464642).

The spelling of 2142230 in words is "two million, one hundred forty-two thousand, two hundred thirty".

Divisors: 1 2 5 10 29 58 83 89 145 166 178 290 415 445 830 890 2407 2581 4814 5162 7387 12035 12905 14774 24070 25810 36935 73870 214223 428446 1071115 2142230