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80040443 = 752321863
BaseRepresentation
bin1001100010101…
…01000111111011
312120121110211212
410301111013323
5130442243233
611535313335
71661222030
oct461250773
9176543755
1080040443
11411a962a
122297b84b
1313775912
14a8b7387
157060a48
hex4c551fb

80040443 has 8 divisors (see below), whose sum is σ = 91653888. Its totient is φ = 68471784.

The previous prime is 80040439. The next prime is 80040449. The reversal of 80040443 is 34404008.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80040443 - 22 = 80040439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80040449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7271 + ... + 14592.

It is an arithmetic number, because the mean of its divisors is an integer number (11456736).

Almost surely, 280040443 is an apocalyptic number.

80040443 is a deficient number, since it is larger than the sum of its proper divisors (11613445).

80040443 is a wasteful number, since it uses less digits than its factorization.

80040443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22393.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 80040443 is about 8946.5324567678. The cubic root of 80040443 is about 430.9595356093.

The spelling of 80040443 in words is "eighty million, forty thousand, four hundred forty-three".

Divisors: 1 7 523 3661 21863 153041 11434349 80040443