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BaseRepresentation
bin11111110101100001101
31222000000112
43332230031
5231340323
634205405
711603303
oct3765415
91860015
101043213
11652866
12423865
132a6ab2
141d2273
15159178
hexfeb0d

1043213 has 2 divisors, whose sum is σ = 1043214. Its totient is φ = 1043212.

The previous prime is 1043209. The next prime is 1043221. The reversal of 1043213 is 3123401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1036324 + 6889 = 1018^2 + 83^2 .

It is a cyclic number.

It is not a de Polignac number, because 1043213 - 22 = 1043209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1043293) 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, 521606 + 521607.

It is an arithmetic number, because the mean of its divisors is an integer number (521607).

21043213 is an apocalyptic number.

It is an amenable number.

1043213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1043213 is an equidigital number, since it uses as much as digits as its factorization.

1043213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1043213 is about 1021.3779907556. The cubic root of 1043213 is about 101.4201690549.

Adding to 1043213 its reverse (3123401), we get a palindrome (4166614).

The spelling of 1043213 in words is "one million, forty-three thousand, two hundred thirteen".