Search a number
-
+
12641112301 = 88643142607
BaseRepresentation
bin10111100010111100…
…00001000011101101
31012121222111001002111
423301132001003231
5201342111043201
65450210524021
7625154452546
oct136136010355
935558431074
1012641112301
1153a763a854
122549596611
131265c2630c
1487cc274cd
154debaeb51
hex2f17810ed

12641112301 has 4 divisors (see below), whose sum is σ = 12641343552. Its totient is φ = 12640881052.

The previous prime is 12641112299. The next prime is 12641112307. The reversal of 12641112301 is 10321114621.

12641112301 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10321114621 = 19543216559.

It is a cyclic number.

It is not a de Polignac number, because 12641112301 - 21 = 12641112299 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 (12641112307) 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 3 ways as a sum of consecutive naturals, for example, 17340 + ... + 159946.

It is an arithmetic number, because the mean of its divisors is an integer number (3160335888).

Almost surely, 212641112301 is an apocalyptic number.

It is an amenable number.

12641112301 is a deficient number, since it is larger than the sum of its proper divisors (231251).

12641112301 is an equidigital number, since it uses as much as digits as its factorization.

12641112301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231250.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 12641112301 its reverse (10321114621), we get a palindrome (22962226922).

The spelling of 12641112301 in words is "twelve billion, six hundred forty-one million, one hundred twelve thousand, three hundred one".

Divisors: 1 88643 142607 12641112301