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2012224212 = 2232101553417
BaseRepresentation
bin111011111110000…
…0001101011010100
312012020100120200200
41313330001223110
513110112133322
6531400540500
7100602423615
oct16774015324
95166316620
102012224212
11942936919
12481a81730
13260b6741b
1415135bc0c
15bb9c98ac
hex77f01ad4

2012224212 has 36 divisors (see below), whose sum is σ = 5136825876. Its totient is φ = 664099200.

The previous prime is 2012224183. The next prime is 2012224217. The reversal of 2012224212 is 2124222102.

2012224212 is a `hidden beast` number, since 20 + 1 + 222 + 421 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1798947396 + 213276816 = 42414^2 + 14604^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012224217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 273073 + ... + 280344.

Almost surely, 22012224212 is an apocalyptic number.

It is an amenable number.

2012224212 is an abundant number, since it is smaller than the sum of its proper divisors (3124601664).

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

2012224212 is a wasteful number, since it uses less digits than its factorization.

2012224212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553528 (or 553523 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2012224212 is about 44857.8221941280. The cubic root of 2012224212 is about 1262.4827614808.

Adding to 2012224212 its reverse (2124222102), we get a palindrome (4136446314).

The spelling of 2012224212 in words is "two billion, twelve million, two hundred twenty-four thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 101 202 303 404 606 909 1212 1818 3636 553417 1106834 1660251 2213668 3320502 4980753 6641004 9961506 19923012 55895117 111790234 167685351 223580468 335370702 503056053 670741404 1006112106 2012224212