Search a number
-
+
12220033220 = 2253119709731
BaseRepresentation
bin10110110000101111…
…01110100011000100
31011112122011000011222
423120113232203010
5200011312030340
65340325415512
7611552366003
oct133027564304
934478130158
1012220033220
11520098790a
12245056a598
1311c99143b5
1483cd36c3a
154b7c358b5
hex2d85ee8c4

12220033220 has 24 divisors (see below), whose sum is σ = 26489879808. Its totient is φ = 4730335200.

The previous prime is 12220033207. The next prime is 12220033237. The reversal of 12220033220 is 2233002221.

12220033220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 9854246 + ... + 9855485.

It is an arithmetic number, because the mean of its divisors is an integer number (1103744992).

Almost surely, 212220033220 is an apocalyptic number.

12220033220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220033220 is an abundant number, since it is smaller than the sum of its proper divisors (14269846588).

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

12220033220 is a wasteful number, since it uses less digits than its factorization.

12220033220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19709771 (or 19709769 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 12220033220 its reverse (2233002221), we get a palindrome (14453035441).

The spelling of 12220033220 in words is "twelve billion, two hundred twenty million, thirty-three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 19709731 39419462 78838924 98548655 197097310 394194620 611001661 1222003322 2444006644 3055008305 6110016610 12220033220