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12998203 = 80916067
BaseRepresentation
bin110001100101…
…011000111011
3220110101011221
4301211120323
511311420303
61142332511
7215324431
oct61453073
926411157
1012998203
117378819
12442a137
13290145a
141a24d51
15121b4bd
hexc6563b

12998203 has 4 divisors (see below), whose sum is σ = 13015080. Its totient is φ = 12981328.

The previous prime is 12998171. The next prime is 12998221. The reversal of 12998203 is 30289921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12998203 - 25 = 12998171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12998263) 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 in 3 ways as a sum of consecutive naturals, for example, 7225 + ... + 8842.

It is an arithmetic number, because the mean of its divisors is an integer number (3253770).

Almost surely, 212998203 is an apocalyptic number.

12998203 is a deficient number, since it is larger than the sum of its proper divisors (16877).

12998203 is an equidigital number, since it uses as much as digits as its factorization.

12998203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16876.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 12998203 is about 3605.3020677885. The cubic root of 12998203 is about 235.1226340461.

The spelling of 12998203 in words is "twelve million, nine hundred ninety-eight thousand, two hundred three".

Divisors: 1 809 16067 12998203