Search a number
-
+
804529729 is a prime number
BaseRepresentation
bin101111111101000…
…010011001000001
32002001212100022101
4233331002121001
53121424422404
6211455510401
725636250503
oct5775023101
92061770271
10804529729
11383155103
121a5528401
13ca8aa8c3
1478bc7d73
154a96e2a4
hex2ff42641

804529729 has 2 divisors, whose sum is σ = 804529730. Its totient is φ = 804529728.

The previous prime is 804529727. The next prime is 804529799. The reversal of 804529729 is 927925408.

804529729 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., 742671504 + 61858225 = 27252^2 + 7865^2 .

It is a cyclic number.

It is not a de Polignac number, because 804529729 - 21 = 804529727 is a prime.

Together with 804529727, 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 (804529721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402264864 + 402264865.

It is an arithmetic number, because the mean of its divisors is an integer number (402264865).

Almost surely, 2804529729 is an apocalyptic number.

It is an amenable number.

804529729 is a deficient number, since it is larger than the sum of its proper divisors (1).

804529729 is an equidigital number, since it uses as much as digits as its factorization.

804529729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 804529729 is about 28364.2332700886. The cubic root of 804529729 is about 930.0665651665.

The spelling of 804529729 in words is "eight hundred four million, five hundred twenty-nine thousand, seven hundred twenty-nine".