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212020331130 = 23252355781457
BaseRepresentation
bin1100010101110101100…
…1011000001001111010
3202021021001122202220200
43011131121120021322
511433204201044010
6241222323303030
721214030036116
oct3053531301172
9667231582820
10212020331130
1181a0aa49963
123511121aa76
1316cbb751a4a
14a3946b2746
1557ad8adcc0
hex315d65827a

212020331130 has 24 divisors (see below), whose sum is σ = 551252861172. Its totient is φ = 56538754944.

The previous prime is 212020331119. The next prime is 212020331153. The reversal of 212020331130 is 31133020212.

212020331130 is a `hidden beast` number, since 2 + 1 + 202 + 0 + 331 + 130 = 666.

212020331130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 210468995361 + 1551335769 = 458769^2 + 39387^2 .

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

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1177890639 + ... + 1177890818.

Almost surely, 2212020331130 is an apocalyptic number.

212020331130 is an abundant number, since it is smaller than the sum of its proper divisors (339232530042).

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

212020331130 is a wasteful number, since it uses less digits than its factorization.

212020331130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2355781470 (or 2355781467 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 212020331130 its reverse (31133020212), we get a palindrome (243153351342).

The spelling of 212020331130 in words is "two hundred twelve billion, twenty million, three hundred thirty-one thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 2355781457 4711562914 7067344371 11778907285 14134688742 21202033113 23557814570 35336721855 42404066226 70673443710 106010165565 212020331130