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14140213 = 64321991
BaseRepresentation
bin110101111100…
…001100110101
3222121101201121
4311330030311
512104441323
61223023541
7231122053
oct65741465
928541647
1014140213
117a8882a
12489abb1
132c111b9
141c411d3
151394a5d
hexd7c335

14140213 has 4 divisors (see below), whose sum is σ = 14162848. Its totient is φ = 14117580.

The previous prime is 14140211. The next prime is 14140223. The reversal of 14140213 is 31204141.

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: 31204141 = 35388397.

It is a cyclic number.

It is not a de Polignac number, because 14140213 - 21 = 14140211 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 (14140211) 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, 10353 + ... + 11638.

It is an arithmetic number, because the mean of its divisors is an integer number (3540712).

Almost surely, 214140213 is an apocalyptic number.

It is an amenable number.

14140213 is a deficient number, since it is larger than the sum of its proper divisors (22635).

14140213 is an equidigital number, since it uses as much as digits as its factorization.

14140213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22634.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 14140213 is about 3760.3474573502. The cubic root of 14140213 is about 241.8161582144.

Adding to 14140213 its reverse (31204141), we get a palindrome (45344354).

The spelling of 14140213 in words is "fourteen million, one hundred forty thousand, two hundred thirteen".

Divisors: 1 643 21991 14140213