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14023143221 = 15838858587
BaseRepresentation
bin11010000111101100…
…00010111100110101
31100012022000111002212
431003312002330311
5212204411040341
610235300343205
71004335515323
oct150366027465
940168014085
1014023143221
115a4677606a
1228743a4b05
131426352ba9
149705bcd13
155711a55eb
hex343d82f35

14023143221 has 4 divisors (see below), whose sum is σ = 14032003392. Its totient is φ = 14014283052.

The previous prime is 14023143193. The next prime is 14023143257. The reversal of 14023143221 is 12234132041.

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: 12234132041 = 26393463537.

It is a cyclic number.

It is not a de Polignac number, because 14023143221 - 214 = 14023126837 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 (14023148221) 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, 4427711 + ... + 4430876.

It is an arithmetic number, because the mean of its divisors is an integer number (3508000848).

Almost surely, 214023143221 is an apocalyptic number.

It is an amenable number.

14023143221 is a deficient number, since it is larger than the sum of its proper divisors (8860171).

14023143221 is an equidigital number, since it uses as much as digits as its factorization.

14023143221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8860170.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 14023143221 its reverse (12234132041), we get a palindrome (26257275262).

The spelling of 14023143221 in words is "fourteen billion, twenty-three million, one hundred forty-three thousand, two hundred twenty-one".

Divisors: 1 1583 8858587 14023143221