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13091203 is a prime number
BaseRepresentation
bin110001111100…
…000110000011
3220122002202101
4301330012003
511322404303
61144331231
7216162526
oct61740603
926562671
1013091203
117431684
124473b17
132934898
141a4abbd
151238d1d
hexc7c183

13091203 has 2 divisors, whose sum is σ = 13091204. Its totient is φ = 13091202.

The previous prime is 13091201. The next prime is 13091219. The reversal of 13091203 is 30219031.

It is a weak prime.

It is an emirp because it is prime and its reverse (30219031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13091203 - 21 = 13091201 is a prime.

Together with 13091201, it forms a pair of twin primes.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (13091201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6545601 + 6545602.

It is an arithmetic number, because the mean of its divisors is an integer number (6545602).

Almost surely, 213091203 is an apocalyptic number.

13091203 is a deficient number, since it is larger than the sum of its proper divisors (1).

13091203 is an equidigital number, since it uses as much as digits as its factorization.

13091203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 13091203 is about 3618.1767507959. The cubic root of 13091203 is about 235.6820565319.

The spelling of 13091203 in words is "thirteen million, ninety-one thousand, two hundred three".