Search a number
-
+
80104447 = 411953767
BaseRepresentation
bin1001100011001…
…00101111111111
312120201201122101
410301210233333
5131001320242
611540525531
71661606443
oct461445777
9176651571
1080104447
1141242725
12229b08a7
1313798aa7
14a8d2823
1570749b7
hex4c64bff

80104447 has 4 divisors (see below), whose sum is σ = 82058256. Its totient is φ = 78150640.

The previous prime is 80104421. The next prime is 80104471. The reversal of 80104447 is 74440108.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80104447 - 27 = 80104319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80104417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 976843 + ... + 976924.

It is an arithmetic number, because the mean of its divisors is an integer number (20514564).

Almost surely, 280104447 is an apocalyptic number.

80104447 is a deficient number, since it is larger than the sum of its proper divisors (1953809).

80104447 is a wasteful number, since it uses less digits than its factorization.

80104447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953808.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 80104447 is about 8950.1087702888. The cubic root of 80104447 is about 431.0743766576.

The spelling of 80104447 in words is "eighty million, one hundred four thousand, four hundred forty-seven".

Divisors: 1 41 1953767 80104447