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12000407 is a prime number
BaseRepresentation
bin101101110001…
…110010010111
3211120200110112
4231301302113
511033003112
61105113235
7204000416
oct55616227
924520415
1012000407
1168570a1
12402881b
132642243
14184547d
1510c0a22
hexb71c97

12000407 has 2 divisors, whose sum is σ = 12000408. Its totient is φ = 12000406.

The previous prime is 12000383. The next prime is 12000409. The reversal of 12000407 is 70400021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12000407 - 214 = 11984023 is a prime.

Together with 12000409, it forms a pair of twin primes.

It is a Chen prime.

12000407 is a modest number, since divided by 407 gives 12 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 12000391 and 12000400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12000409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000203 + 6000204.

It is an arithmetic number, because the mean of its divisors is an integer number (6000204).

Almost surely, 212000407 is an apocalyptic number.

12000407 is a deficient number, since it is larger than the sum of its proper divisors (1).

12000407 is an equidigital number, since it uses as much as digits as its factorization.

12000407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 12000407 is about 3464.1603600295. The cubic root of 12000407 is about 228.9454368075.

Adding to 12000407 its reverse (70400021), we get a palindrome (82400428).

The spelling of 12000407 in words is "twelve million, four hundred seven", and thus it is an aban number.