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80604943 = 488916487
BaseRepresentation
bin1001100110111…
…10111100001111
312121200011012021
410303132330033
5131113324233
611555351011
71666062556
oct463367417
9177604167
1080604943
1141554761
1222bb2467
1313912843
14a9c2d9d
157122e2d
hex4cdef0f

80604943 has 4 divisors (see below), whose sum is σ = 80626320. Its totient is φ = 80583568.

The previous prime is 80604941. The next prime is 80604961. The reversal of 80604943 is 34940608.

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 80604943 - 21 = 80604941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80604899 and 80604908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80604941) 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, 3355 + ... + 13132.

It is an arithmetic number, because the mean of its divisors is an integer number (20156580).

Almost surely, 280604943 is an apocalyptic number.

80604943 is a deficient number, since it is larger than the sum of its proper divisors (21377).

80604943 is a wasteful number, since it uses less digits than its factorization.

80604943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21376.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 80604943 is about 8978.0255624497. The cubic root of 80604943 is about 431.9703036714.

The spelling of 80604943 in words is "eighty million, six hundred four thousand, nine hundred forty-three".

Divisors: 1 4889 16487 80604943