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12006419 = 22975227
BaseRepresentation
bin101101110011…
…010000010011
3211120222201012
4231303100103
511033201134
61105201135
7204024065
oct55632023
924528635
1012006419
116860667
1240301ab
132644bb9
141847735
1510c26ce
hexb73413

12006419 has 4 divisors (see below), whose sum is σ = 12013944. Its totient is φ = 11998896.

The previous prime is 12006409. The next prime is 12006427. The reversal of 12006419 is 91460021.

It is a happy number.

12006419 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 91460021 = 731252877.

It is a cyclic number.

It is not a de Polignac number, because 12006419 - 216 = 11940883 is a prime.

It is a super-2 number, since 2×120064192 = 288308194407122, 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 = 12006394 and 12006403.

It is not an unprimeable number, because it can be changed into a prime (12006409) 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, 317 + ... + 4910.

It is an arithmetic number, because the mean of its divisors is an integer number (3003486).

Almost surely, 212006419 is an apocalyptic number.

12006419 is a deficient number, since it is larger than the sum of its proper divisors (7525).

12006419 is an equidigital number, since it uses as much as digits as its factorization.

12006419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7524.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 12006419 is about 3465.0279941149. The cubic root of 12006419 is about 228.9836630159.

The spelling of 12006419 in words is "twelve million, six thousand, four hundred nineteen".

Divisors: 1 2297 5227 12006419