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12100519 is a prime number
BaseRepresentation
bin101110001010…
…001110100111
3211202202210101
4232022032213
511044204034
61111204531
7204565324
oct56121647
924682711
1012100519
116915332
124076747
132678992
14186db4b
1510e0514
hexb8a3a7

12100519 has 2 divisors, whose sum is σ = 12100520. Its totient is φ = 12100518.

The previous prime is 12100513. The next prime is 12100531. The reversal of 12100519 is 91500121.

It is a weak prime.

It is an emirp because it is prime and its reverse (91500121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12100519 - 27 = 12100391 is a prime.

It is a super-2 number, since 2×121005192 = 292845120138722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12100496 and 12100505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12100513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050259 + 6050260.

It is an arithmetic number, because the mean of its divisors is an integer number (6050260).

Almost surely, 212100519 is an apocalyptic number.

12100519 is a deficient number, since it is larger than the sum of its proper divisors (1).

12100519 is an equidigital number, since it uses as much as digits as its factorization.

12100519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 19.

The square root of 12100519 is about 3478.5800263901. The cubic root of 12100519 is about 229.5803248021.

The spelling of 12100519 in words is "twelve million, one hundred thousand, five hundred nineteen".