Search a number
-
+
80320804 = 2241489761
BaseRepresentation
bin1001100100110…
…01100100100100
312121010201102121
410302121210210
5131030231204
611545315324
71663500304
oct462314444
9177121377
1080320804
1141380233
1222a95b44
1313843405
14a94b604
1570b8b54
hex4c99924

80320804 has 12 divisors (see below), whose sum is σ = 143990028. Its totient is φ = 39180800.

The previous prime is 80320789. The next prime is 80320813. The reversal of 80320804 is 40802308.

It can be written as a sum of positive squares in 2 ways, for example, as 4665600 + 75655204 = 2160^2 + 8698^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244717 + ... + 245044.

It is an arithmetic number, because the mean of its divisors is an integer number (11999169).

Almost surely, 280320804 is an apocalyptic number.

It is an amenable number.

80320804 is a deficient number, since it is larger than the sum of its proper divisors (63669224).

80320804 is a wasteful number, since it uses less digits than its factorization.

80320804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489806 (or 489804 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 80320804 is about 8962.1874561962. The cubic root of 80320804 is about 431.4621292302.

The spelling of 80320804 in words is "eighty million, three hundred twenty thousand, eight hundred four".

Divisors: 1 2 4 41 82 164 489761 979522 1959044 20080201 40160402 80320804