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52331023213 = 731307785527
BaseRepresentation
bin110000101111001011…
…000000101101101101
312000002001001102022221
4300233023000231231
51324133220220323
640012431235341
73531545233540
oct605713005555
9160061042287
1052331023213
1120214553317
12a185678b51
134c1c9877c1
142766156857
15156434355d
hexc2f2c0b6d

52331023213 has 16 divisors (see below), whose sum is σ = 61937311744. Its totient is φ = 43266772080.

The previous prime is 52331023207. The next prime is 52331023271. The reversal of 52331023213 is 31232013325.

52331023213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-52331023213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52331923213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326145 + ... + 459382.

It is an arithmetic number, because the mean of its divisors is an integer number (3871081984).

Almost surely, 252331023213 is an apocalyptic number.

It is an amenable number.

52331023213 is a deficient number, since it is larger than the sum of its proper divisors (9606288531).

52331023213 is a wasteful number, since it uses less digits than its factorization.

52331023213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785872.

The product of its (nonzero) digits is 3240, while the sum is 25.

Adding to 52331023213 its reverse (31232013325), we get a palindrome (83563036538).

The spelling of 52331023213 in words is "fifty-two billion, three hundred thirty-one million, twenty-three thousand, two hundred thirteen".

Divisors: 1 7 31 217 307 2149 9517 66619 785527 5498689 24351337 170459359 241156789 1688097523 7475860459 52331023213