Search a number
BaseRepresentation
bin10110010111010000…
…00011101111011000
31010222201210200120201
423023220003233120
5144042042214040
65303210431544
7603345051133
oct131350035730
933881720521
1012006210520
115101213737
1223b0a325b4
13119452a5a5
1481c79721a
154a409aa9a
hex2cba03bd8

12006210520 has 32 divisors (see below), whose sum is σ = 27032130000. Its totient is φ = 4799256448.

The previous prime is 12006210499. The next prime is 12006210521. The reversal of 12006210520 is 2501260021.

Adding to 12006210520 its reverse (2501260021), we get a palindrome (14507470541).

12006210520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12006210521) 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 7 ways as a sum of consecutive naturals, for example, 40159 + ... + 160078.

Almost surely, 212006210520 is an apocalyptic number.

12006210520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12006210520 is an abundant number, since it is smaller than the sum of its proper divisors (15025919480).

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

12006210520 is a wasteful number, since it uses less digits than its factorization.

12006210520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201747 (or 201743 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The spelling of 12006210520 in words is "twelve billion, six million, two hundred ten thousand, five hundred twenty".