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3243115213 = 13555744893
BaseRepresentation
bin1100000101001110…
…0000001011001101
322101000111022201021
43001103200023031
523120214141323
61253451114141
7143240011252
oct30123401315
98330438637
103243115213
111414721508
12766142951
133c8b862b0
1422aa0d429
1513eab805d
hexc14e02cd

3243115213 has 8 divisors (see below), whose sum is σ = 3493291928. Its totient is φ = 2993039424.

The previous prime is 3243115201. The next prime is 3243115217. The reversal of 3243115213 is 3125113423.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 704265444 + 2538849769 = 26538^2 + 50387^2 .

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-3243115213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3243115217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49795 + ... + 94687.

It is an arithmetic number, because the mean of its divisors is an integer number (436661491).

Almost surely, 23243115213 is an apocalyptic number.

It is an amenable number.

3243115213 is a deficient number, since it is larger than the sum of its proper divisors (250176715).

3243115213 is a wasteful number, since it uses less digits than its factorization.

3243115213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50463.

The product of its digits is 2160, while the sum is 25.

The square root of 3243115213 is about 56948.3556654624. The cubic root of 3243115213 is about 1480.2013381129.

Adding to 3243115213 its reverse (3125113423), we get a palindrome (6368228636).

The spelling of 3243115213 in words is "three billion, two hundred forty-three million, one hundred fifteen thousand, two hundred thirteen".

Divisors: 1 13 5557 44893 72241 583609 249470401 3243115213