Search a number
-
+
806908 = 22613307
BaseRepresentation
bin11000100111111111100
31111222212111
43010333330
5201310113
625143404
76600334
oct3047774
91458774
10806908
11501273
1232ab64
1322337b
141700c4
1510e13d
hexc4ffc

806908 has 12 divisors (see below), whose sum is σ = 1435672. Its totient is φ = 396720.

The previous prime is 806903. The next prime is 806917. The reversal of 806908 is 809608.

It is a super-2 number, since 2×8069082 = 1302201040928, which contains 22 as substring.

806908 is a strobogrammatic number because it is the same when read upside-down.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 806908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806903) by changing a digit.

806908 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 3 ways as a sum of consecutive naturals, for example, 1410 + ... + 1897.

2806908 is an apocalyptic number.

It is an amenable number.

806908 is a deficient number, since it is larger than the sum of its proper divisors (628764).

806908 is a wasteful number, since it uses less digits than its factorization.

806908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3372 (or 3370 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 806908 is about 898.2805797745. The cubic root of 806908 is about 93.0982120449.

The spelling of 806908 in words is "eight hundred six thousand, nine hundred eight".

Divisors: 1 2 4 61 122 244 3307 6614 13228 201727 403454 806908