Search a number
-
+
80040044 = 2272858573
BaseRepresentation
bin1001100010101…
…01000001101100
312120121110022002
410301111001230
5130442240134
611535311432
71661220620
oct461250154
9176543262
1080040044
11411a92a7
122297b578
1313775696
14a8b7180
15706087e
hex4c5506c

80040044 has 12 divisors (see below), whose sum is σ = 160080144. Its totient is φ = 34302864.

The previous prime is 80040031. The next prime is 80040053. The reversal of 80040044 is 44004008.

80040044 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 80039998 and 80040025.

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, 1429259 + ... + 1429314.

It is an arithmetic number, because the mean of its divisors is an integer number (13340012).

Almost surely, 280040044 is an apocalyptic number.

It is an amenable number.

80040044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

80040044 is a wasteful number, since it uses less digits than its factorization.

80040044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2858584 (or 2858582 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 80040044 is about 8946.5101575978. The cubic root of 80040044 is about 430.9588194999.

It can be divided in two parts, 8004004 and 4, that added together give a palindrome (8004008).

The spelling of 80040044 in words is "eighty million, forty thousand, forty-four".

Divisors: 1 2 4 7 14 28 2858573 5717146 11434292 20010011 40020022 80040044