Search a number
-
+
12443242301 = 71777606043
BaseRepresentation
bin10111001011010110…
…01100111100111101
31012010012011012110222
423211223030330331
5200440432223201
65414421511125
7620232546230
oct134553147475
935105135428
1012443242301
115305982126
1224b32724a5
131233c36689
1486083b417
154cc62691b
hex2e5accf3d

12443242301 has 4 divisors (see below), whose sum is σ = 14220848352. Its totient is φ = 10665636252.

The previous prime is 12443242297. The next prime is 12443242337. The reversal of 12443242301 is 10324234421.

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 12443242301 - 22 = 12443242297 is a prime.

It is a super-2 number, since 2×124432423012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12443242001) 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, 888803015 + ... + 888803028.

It is an arithmetic number, because the mean of its divisors is an integer number (3555212088).

Almost surely, 212443242301 is an apocalyptic number.

It is an amenable number.

12443242301 is a deficient number, since it is larger than the sum of its proper divisors (1777606051).

12443242301 is an equidigital number, since it uses as much as digits as its factorization.

12443242301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1777606050.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 12443242301 its reverse (10324234421), we get a palindrome (22767476722).

The spelling of 12443242301 in words is "twelve billion, four hundred forty-three million, two hundred forty-two thousand, three hundred one".

Divisors: 1 7 1777606043 12443242301