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14162213 = 131089401
BaseRepresentation
bin110110000001…
…100100100101
3222122111220102
4312001210211
512111142323
61223313445
7231243152
oct66014445
928574812
1014162213
117aa330a
1248ab885
132c1b210
141c49229
15139b328
hexd81925

14162213 has 4 divisors (see below), whose sum is σ = 15251628. Its totient is φ = 13072800.

The previous prime is 14162209. The next prime is 14162221. The reversal of 14162213 is 31226141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31226141 = 159719553.

It can be written as a sum of positive squares in 2 ways, for example, as 5769604 + 8392609 = 2402^2 + 2897^2 .

It is not a de Polignac number, because 14162213 - 22 = 14162209 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 (14162263) 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, 544688 + ... + 544713.

It is an arithmetic number, because the mean of its divisors is an integer number (3812907).

Almost surely, 214162213 is an apocalyptic number.

14162213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

14162213 is a deficient number, since it is larger than the sum of its proper divisors (1089415).

14162213 is a wasteful number, since it uses less digits than its factorization.

14162213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089414.

The product of its digits is 288, while the sum is 20.

The square root of 14162213 is about 3763.2715820148. The cubic root of 14162213 is about 241.9415028339.

Adding to 14162213 its reverse (31226141), we get a palindrome (45388354).

The spelling of 14162213 in words is "fourteen million, one hundred sixty-two thousand, two hundred thirteen".

Divisors: 1 13 1089401 14162213