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12419 = 111129
BaseRepresentation
bin11000010000011
3122000222
43002003
5344134
6133255
751131
oct30203
918028
1012419
119370
12722b
135864
144751
153a2e
hex3083

12419 has 4 divisors (see below), whose sum is σ = 13560. Its totient is φ = 11280.

The previous prime is 12413. The next prime is 12421. The reversal of 12419 is 91421.

12419 = T22 + T23 + ... + T43.

It is a happy number.

12419 is nontrivially palindromic in base 4 and base 8.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91421 = 118311.

It is a cyclic number.

It is not a de Polignac number, because 12419 - 28 = 12163 is a prime.

It is a super-2 number, since 2×124192 = 308463122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12397 and 12406.

It is not an unprimeable number, because it can be changed into a prime (12413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554 + ... + 575.

It is an arithmetic number, because the mean of its divisors is an integer number (3390).

212419 is an apocalyptic number.

12419 is a deficient number, since it is larger than the sum of its proper divisors (1141).

12419 is a wasteful number, since it uses less digits than its factorization.

12419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140.

The product of its digits is 72, while the sum is 17.

The square root of 12419 is about 111.4405671199. The cubic root of 12419 is about 23.1577063382.

The spelling of 12419 in words is "twelve thousand, four hundred nineteen".

Divisors: 1 11 1129 12419