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712804009 is a prime number
BaseRepresentation
bin101010011111001…
…000011010101001
31211200021012021111
4222133020122221
52424434212014
6154421510321
723443506541
oct5237103251
91750235244
10712804009
113363a5225
1217a8723a1
13b48a3328
146a94c321
15428a12c4
hex2a7c86a9

712804009 has 2 divisors, whose sum is σ = 712804010. Its totient is φ = 712804008.

The previous prime is 712803997. The next prime is 712804031. The reversal of 712804009 is 900408217.

712804009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 424483609 + 288320400 = 20603^2 + 16980^2 .

It is an emirp because it is prime and its reverse (900408217) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 712804009 - 213 = 712795817 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (712804039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356402004 + 356402005.

It is an arithmetic number, because the mean of its divisors is an integer number (356402005).

Almost surely, 2712804009 is an apocalyptic number.

It is an amenable number.

712804009 is a deficient number, since it is larger than the sum of its proper divisors (1).

712804009 is an equidigital number, since it uses as much as digits as its factorization.

712804009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 712804009 is about 26698.3896330846. The cubic root of 712804009 is about 893.2850064665.

The spelling of 712804009 in words is "seven hundred twelve million, eight hundred four thousand, nine".