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10804009 is a prime number
BaseRepresentation
bin101001001101…
…101100101001
3202022220022111
4221031230221
510231212014
61023322321
7160555366
oct51155451
922286274
1010804009
11610a237
1237503a1
132313808
14161346d
15e362c4
hexa4db29

10804009 has 2 divisors, whose sum is σ = 10804010. Its totient is φ = 10804008.

The previous prime is 10804007. The next prime is 10804019. The reversal of 10804009 is 90040801.

10804009 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., 10208025 + 595984 = 3195^2 + 772^2 .

It is a cyclic number.

It is not a de Polignac number, because 10804009 - 21 = 10804007 is a prime.

It is a super-2 number, since 2×108040092 = 233453220944162, which contains 22 as substring.

Together with 10804007, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10804007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5402004 + 5402005.

It is an arithmetic number, because the mean of its divisors is an integer number (5402005).

Almost surely, 210804009 is an apocalyptic number.

It is an amenable number.

10804009 is a deficient number, since it is larger than the sum of its proper divisors (1).

10804009 is an equidigital number, since it uses as much as digits as its factorization.

10804009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 10804009 is about 3286.9452383634. The cubic root of 10804009 is about 221.0692370577.

The spelling of 10804009 in words is "ten million, eight hundred four thousand, nine".