Search a number
-
+
212040304211 = 2692668729537
BaseRepresentation
bin1100010101111010010…
…1100100011001010011
3202021022110020111211102
43011132211210121103
511433224304213321
6241224315335015
721214361563511
oct3053645443123
9667273214742
10212040304211
1181a20250a3a
1235117a5146b
1316cc2925b38
14a3971d14b1
1557b0506c0b
hex315e964653

212040304211 has 8 divisors (see below), whose sum is σ = 212843738880. Its totient is φ = 211236982528.

The previous prime is 212040304163. The next prime is 212040304213. The reversal of 212040304211 is 112403040212.

212040304211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-212040304211 is a prime.

It is a super-2 number, since 2×2120403042112 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212040304213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7164035 + ... + 7193571.

It is an arithmetic number, because the mean of its divisors is an integer number (26605467360).

Almost surely, 2212040304211 is an apocalyptic number.

212040304211 is a deficient number, since it is larger than the sum of its proper divisors (803434669).

212040304211 is a wasteful number, since it uses less digits than its factorization.

212040304211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56493.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 212040304211 its reverse (112403040212), we get a palindrome (324443344423).

The spelling of 212040304211 in words is "two hundred twelve billion, forty million, three hundred four thousand, two hundred eleven".

Divisors: 1 269 26687 29537 7178803 7945453 788253919 212040304211