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12785203 is a prime number
BaseRepresentation
bin110000110001…
…011000110011
3220001120000001
4300301120303
511233111303
61134010431
7213446434
oct60613063
926046001
1012785203
117242792
124346a17
132858512
1419ab48b
1511c831d
hexc31633

12785203 has 2 divisors, whose sum is σ = 12785204. Its totient is φ = 12785202.

The previous prime is 12785197. The next prime is 12785209. The reversal of 12785203 is 30258721.

It is a balanced prime because it is at equal distance from previous prime (12785197) and next prime (12785209).

It is an emirp because it is prime and its reverse (30258721) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12785203 is a prime.

It is a super-2 number, since 2×127852032 = 326922831502418, which contains 22 as substring.

It is equal to p836191 and since 12785203 and 836191 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (12785209) 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, 6392601 + 6392602.

It is an arithmetic number, because the mean of its divisors is an integer number (6392602).

Almost surely, 212785203 is an apocalyptic number.

12785203 is a deficient number, since it is larger than the sum of its proper divisors (1).

12785203 is an equidigital number, since it uses as much as digits as its factorization.

12785203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 12785203 is about 3575.6402223937. The cubic root of 12785203 is about 233.8312453622.

The spelling of 12785203 in words is "twelve million, seven hundred eighty-five thousand, two hundred three".