Search a number
-
+
680080089 = 31317437951
BaseRepresentation
bin101000100010010…
…011001011011001
31202101200122111110
4220202103023121
52343100030324
6151252250533
722565404533
oct5042231331
91671618443
10680080089
11319984267
1216b910a49
13aab86570
1466470853
153ea8a329
hex288932d9

680080089 has 8 divisors (see below), whose sum is σ = 976525312. Its totient is φ = 418510800.

The previous prime is 680080067. The next prime is 680080109. The reversal of 680080089 is 980080086.

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

It is not a de Polignac number, because 680080089 - 211 = 680078041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 17437951 = 680080089 / (6 + 8 + 0 + 0 + 8 + 0 + 0 + 8 + 9).

680080089 is a strobogrammatic number because it is the same when read upside-down.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680080039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8718937 + ... + 8719014.

It is an arithmetic number, because the mean of its divisors is an integer number (122065664).

Almost surely, 2680080089 is an apocalyptic number.

It is an amenable number.

680080089 is a deficient number, since it is larger than the sum of its proper divisors (296445223).

680080089 is a wasteful number, since it uses less digits than its factorization.

680080089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17437967.

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 680080089 is about 26078.3452120720. The cubic root of 680080089 is about 879.4004563795.

The spelling of 680080089 in words is "six hundred eighty million, eighty thousand, eighty-nine".

Divisors: 1 3 13 39 17437951 52313853 226693363 680080089