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14142345421 = 31456204691
BaseRepresentation
bin11010010101111001…
…10001000011001101
31100111121022120210011
431022330301003031
5212430420023141
610255155313221
71010313644521
oct151274610315
940447276704
1014142345421
115aa7a92486
1228a82ab811
131444c5a939
1498236bd81
1557b89e881
hex34af310cd

14142345421 has 4 divisors (see below), whose sum is σ = 14598550144. Its totient is φ = 13686140700.

The previous prime is 14142345403. The next prime is 14142345431. The reversal of 14142345421 is 12454324141.

It is a happy number.

14142345421 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.

It is a cyclic number.

It is not a de Polignac number, because 14142345421 - 231 = 11994861773 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 456204691 = 14142345421 / (1 + 4 + 1 + 4 + 2 + 3 + 4 + 5 + 4 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14142345431) 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, 228102315 + ... + 228102376.

It is an arithmetic number, because the mean of its divisors is an integer number (3649637536).

Almost surely, 214142345421 is an apocalyptic number.

It is an amenable number.

14142345421 is a deficient number, since it is larger than the sum of its proper divisors (456204723).

14142345421 is an equidigital number, since it uses as much as digits as its factorization.

14142345421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456204722.

The product of its digits is 15360, while the sum is 31.

Adding to 14142345421 its reverse (12454324141), we get a palindrome (26596669562).

The spelling of 14142345421 in words is "fourteen billion, one hundred forty-two million, three hundred forty-five thousand, four hundred twenty-one".

Divisors: 1 31 456204691 14142345421