Search a number
-
+
14054442421 = 87831600187
BaseRepresentation
bin11010001011011010…
…11100010110110101
31100021110220122112111
431011231130112311
5212240414124141
610242335251021
71005165534535
oct150555342665
940243818474
1014054442421
115a62403678
122882979a71
13142c991326
149748094c5
15573cd9381
hex345b5c5b5

14054442421 has 4 divisors (see below), whose sum is σ = 14056051392. Its totient is φ = 14052833452.

The previous prime is 14054442407. The next prime is 14054442431. The reversal of 14054442421 is 12424445041.

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: 12424445041 = 95111130631.

It is a cyclic number.

It is not a de Polignac number, because 14054442421 - 27 = 14054442293 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 (14054442401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 791311 + ... + 808876.

It is an arithmetic number, because the mean of its divisors is an integer number (3514012848).

Almost surely, 214054442421 is an apocalyptic number.

It is an amenable number.

14054442421 is a deficient number, since it is larger than the sum of its proper divisors (1608971).

14054442421 is an equidigital number, since it uses as much as digits as its factorization.

14054442421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608970.

The product of its (nonzero) digits is 20480, while the sum is 31.

Adding to 14054442421 its reverse (12424445041), we get a palindrome (26478887462).

The spelling of 14054442421 in words is "fourteen billion, fifty-four million, four hundred forty-two thousand, four hundred twenty-one".

Divisors: 1 8783 1600187 14054442421