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14143111 = 139101749
BaseRepresentation
bin110101111100…
…111010000111
3222121112200221
4311330322013
512110034421
61223045211
7231133363
oct65747207
928545627
1014143111
117a8aa24
1248a0807
132c12608
141c422a3
151395841
hexd7ce87

14143111 has 4 divisors (see below), whose sum is σ = 14245000. Its totient is φ = 14041224.

The previous prime is 14143109. The next prime is 14143121. The reversal of 14143111 is 11134141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11134141 = 108710243.

It is not a de Polignac number, because 14143111 - 21 = 14143109 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 (14143121) 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, 50736 + ... + 51013.

It is an arithmetic number, because the mean of its divisors is an integer number (3561250).

Almost surely, 214143111 is an apocalyptic number.

14143111 is a deficient number, since it is larger than the sum of its proper divisors (101889).

14143111 is a wasteful number, since it uses less digits than its factorization.

14143111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101888.

The product of its digits is 48, while the sum is 16.

The square root of 14143111 is about 3760.7327743407. The cubic root of 14143111 is about 241.8326769509.

Adding to 14143111 its reverse (11134141), we get a palindrome (25277252).

The spelling of 14143111 in words is "fourteen million, one hundred forty-three thousand, one hundred eleven".

Divisors: 1 139 101749 14143111