Search a number
-
+
2213213212 = 22779043329
BaseRepresentation
bin1000001111101010…
…1111010000011100
312201020112212202201
42003322233100130
514013040310322
61003340501244
7105563000440
oct20372572034
95636485681
102213213212
11a36334931
1251924a824
132936a9922
1416dd1a820
15ce47bd27
hex83eaf41c

2213213212 has 12 divisors (see below), whose sum is σ = 4426426480. Its totient is φ = 948519936.

The previous prime is 2213213209. The next prime is 2213213227. The reversal of 2213213212 is 2123123122.

2213213212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

2213213212 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 2213213212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39521637 + ... + 39521692.

Almost surely, 22213213212 is an apocalyptic number.

It is an amenable number.

2213213212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2213213212 is a wasteful number, since it uses less digits than its factorization.

2213213212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79043340 (or 79043338 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 2213213212 is about 47044.8000527157. The cubic root of 2213213212 is about 1303.1900378315.

Adding to 2213213212 its reverse (2123123122), we get a palindrome (4336336334).

It can be divided in two parts, 22132 and 13212, that added together give a square (35344 = 1882).

The spelling of 2213213212 in words is "two billion, two hundred thirteen million, two hundred thirteen thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 79043329 158086658 316173316 553303303 1106606606 2213213212