Search a number
-
+
80825828 = 2264731231
BaseRepresentation
bin1001101000101…
…00110111100100
312122002101012012
410310110313210
5131142411303
612004213352
72001002546
oct464246744
9178071165
1080825828
1141695706
122309a258
131398c245
14aa3d696
1571685d8
hex4d14de4

80825828 has 12 divisors (see below), whose sum is σ = 141668352. Its totient is φ = 40349160.

The previous prime is 80825827. The next prime is 80825831. The reversal of 80825828 is 82852808.

It is not an unprimeable number, because it can be changed into a prime (80825827) 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 3 ways as a sum of consecutive naturals, for example, 13028 + ... + 18203.

It is an arithmetic number, because the mean of its divisors is an integer number (11805696).

Almost surely, 280825828 is an apocalyptic number.

It is an amenable number.

80825828 is a deficient number, since it is larger than the sum of its proper divisors (60842524).

80825828 is a wasteful number, since it uses less digits than its factorization.

80825828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31882 (or 31880 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 41.

The square root of 80825828 is about 8990.3185705513. The cubic root of 80825828 is about 432.3645257137.

The spelling of 80825828 in words is "eighty million, eight hundred twenty-five thousand, eight hundred twenty-eight".

Divisors: 1 2 4 647 1294 2588 31231 62462 124924 20206457 40412914 80825828