Search a number
-
+
804785331 = 3738323111
BaseRepresentation
bin101111111110000…
…000110010110011
32002002100022221010
4233332000302303
53122011112311
6211505202003
725641363630
oct5776006263
92062308833
10804785331
1138330a149
121a5630303
13ca96a04c
1478c53187
154a9beda6
hex2ff80cb3

804785331 has 8 divisors (see below), whose sum is σ = 1226339584. Its totient is φ = 459877320.

The previous prime is 804785329. The next prime is 804785353. The reversal of 804785331 is 133587408.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 804785331 - 21 = 804785329 is a prime.

It is a super-2 number, since 2×8047853312 = 1295358857985559122, which contains 22 as substring.

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 804785331.

It is not an unprimeable number, because it can be changed into a prime (804785131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19161535 + ... + 19161576.

It is an arithmetic number, because the mean of its divisors is an integer number (153292448).

Almost surely, 2804785331 is an apocalyptic number.

804785331 is a deficient number, since it is larger than the sum of its proper divisors (421554253).

804785331 is a wasteful number, since it uses less digits than its factorization.

804785331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38323121.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 804785331 is about 28368.7386219409. The cubic root of 804785331 is about 930.1650499063.

The spelling of 804785331 in words is "eight hundred four million, seven hundred eighty-five thousand, three hundred thirty-one".

Divisors: 1 3 7 21 38323111 114969333 268261777 804785331