Search a number
-
+
80794638 = 2332951593
BaseRepresentation
bin1001101000011…
…01010000001110
312122000210102000
410310031100032
5131140412023
612003413130
72000512611
oct464152016
9178023360
1080794638
1141674231
12230841a6
131397aca2
14aa32178
15715e243
hex4d0d40e

80794638 has 32 divisors (see below), whose sum is σ = 185738400. Its totient is φ = 26002368.

The previous prime is 80794619. The next prime is 80794639. The reversal of 80794638 is 83649708.

It is a happy number.

80794638 is a `hidden beast` number, since 8 + 0 + 7 + 9 + 4 + 638 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 80794593 and 80794602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80794639) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 24231 + ... + 27362.

It is an arithmetic number, because the mean of its divisors is an integer number (5804325).

Almost surely, 280794638 is an apocalyptic number.

80794638 is an abundant number, since it is smaller than the sum of its proper divisors (104943762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80794638 is a wasteful number, since it uses less digits than its factorization.

80794638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51633 (or 51627 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 80794638 is about 8988.5837594139. The cubic root of 80794638 is about 432.3089032932.

The spelling of 80794638 in words is "eighty million, seven hundred ninety-four thousand, six hundred thirty-eight".

Divisors: 1 2 3 6 9 18 27 29 54 58 87 174 261 522 783 1566 51593 103186 154779 309558 464337 928674 1393011 1496197 2786022 2992394 4488591 8977182 13465773 26931546 40397319 80794638