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2021214 = 231325913
BaseRepresentation
bin111101101011101011110
310210200120210
413231131132
51004134324
6111153250
723115516
oct7553536
93720523
102021214
111160628
12815826
13559cb0
143a8846
1529dd29
hex1ed75e

2021214 has 16 divisors (see below), whose sum is σ = 4353552. Its totient is φ = 621888.

The previous prime is 2021203. The next prime is 2021219. The reversal of 2021214 is 4121202.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2021214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021219) 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, 12879 + ... + 13034.

It is an arithmetic number, because the mean of its divisors is an integer number (272097).

22021214 is an apocalyptic number.

2021214 is an abundant number, since it is smaller than the sum of its proper divisors (2332338).

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

2021214 is a wasteful number, since it uses less digits than its factorization.

2021214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25931.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2021214 is about 1421.6940599158. The cubic root of 2021214 is about 126.4360052719.

Subtracting from 2021214 its sum of digits (12), we obtain a palindrome (2021202).

Adding to 2021214 its reverse (4121202), we get a palindrome (6142416).

The spelling of 2021214 in words is "two million, twenty-one thousand, two hundred fourteen".

Divisors: 1 2 3 6 13 26 39 78 25913 51826 77739 155478 336869 673738 1010607 2021214