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213030240212 = 2253257560053
BaseRepresentation
bin1100011001100110010…
…1110111111111010100
3202100212102222110201202
43012121211313333110
511442241220141322
6241510441212032
721251042110346
oct3063145677724
9670772873652
10213030240212
1182389020569
1235353491018
131711ca4b29a
14a44c87d296
15581c39b292
hex3199977fd4

213030240212 has 6 divisors (see below), whose sum is σ = 372802920378. Its totient is φ = 106515120104.

The previous prime is 213030240173. The next prime is 213030240253. The reversal of 213030240212 is 212042030312.

It can be written as a sum of positive squares in only one way, i.e., 169971500176 + 43058740036 = 412276^2 + 207506^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26628780023 + ... + 26628780030.

It is an arithmetic number, because the mean of its divisors is an integer number (62133820063).

Almost surely, 2213030240212 is an apocalyptic number.

It is an amenable number.

213030240212 is a deficient number, since it is larger than the sum of its proper divisors (159772680166).

213030240212 is a wasteful number, since it uses less digits than its factorization.

213030240212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53257560057 (or 53257560055 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 213030240212 its reverse (212042030312), we get a palindrome (425072270524).

The spelling of 213030240212 in words is "two hundred thirteen billion, thirty million, two hundred forty thousand, two hundred twelve".

Divisors: 1 2 4 53257560053 106515120106 213030240212