Search a number
-
+
804223487 = 4119615207
BaseRepresentation
bin101111111011110…
…111100111111111
32002001021210020002
4233323313213333
53121340122422
6211445144515
725633533614
oct5773674777
92061253202
10804223487
11382a66011
121a53bb13b
13ca8013b2
1478b4850b
154a90d692
hex2fef79ff

804223487 has 4 divisors (see below), whose sum is σ = 823838736. Its totient is φ = 784608240.

The previous prime is 804223481. The next prime is 804223489. The reversal of 804223487 is 784322408.

It is a happy number.

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 804223487 - 26 = 804223423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 804223487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804223481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9807563 + ... + 9807644.

It is an arithmetic number, because the mean of its divisors is an integer number (205959684).

Almost surely, 2804223487 is an apocalyptic number.

804223487 is a deficient number, since it is larger than the sum of its proper divisors (19615249).

804223487 is a wasteful number, since it uses less digits than its factorization.

804223487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19615248.

The product of its (nonzero) digits is 86016, while the sum is 38.

The square root of 804223487 is about 28358.8343730838. The cubic root of 804223487 is about 929.9485411077.

The spelling of 804223487 in words is "eight hundred four million, two hundred twenty-three thousand, four hundred eighty-seven".

Divisors: 1 41 19615207 804223487