Search a number
-
+
12243101213 = 71749014459
BaseRepresentation
bin10110110011011111…
…01110011000011101
31011121020112222112002
423121233232120131
5200033213214323
65342512052045
7612252433430
oct133157563035
934536488462
1012243101213
115212a03172
122458234025
1312016300b5
1484201d817
154b9c90828
hex2d9bee61d

12243101213 has 4 divisors (see below), whose sum is σ = 13992115680. Its totient is φ = 10494086748.

The previous prime is 12243101201. The next prime is 12243101251. The reversal of 12243101213 is 31210134221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12243101213 - 210 = 12243100189 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 (12243101113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 874507223 + ... + 874507236.

It is an arithmetic number, because the mean of its divisors is an integer number (3498028920).

Almost surely, 212243101213 is an apocalyptic number.

It is an amenable number.

12243101213 is a deficient number, since it is larger than the sum of its proper divisors (1749014467).

12243101213 is an equidigital number, since it uses as much as digits as its factorization.

12243101213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749014466.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12243101213 its reverse (31210134221), we get a palindrome (43453235434).

The spelling of 12243101213 in words is "twelve billion, two hundred forty-three million, one hundred one thousand, two hundred thirteen".

Divisors: 1 7 1749014459 12243101213