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80671343 = 239337537
BaseRepresentation
bin1001100111011…
…11001001101111
312121210112021112
410303233021233
5131122440333
612001022235
71666460264
oct463571157
9177715245
1080671343
114159a635
122302497b
1313936b2c
14a9dd26b
157137948
hex4cef26f

80671343 has 4 divisors (see below), whose sum is σ = 81009120. Its totient is φ = 80333568.

The previous prime is 80671319. The next prime is 80671363. The reversal of 80671343 is 34317608.

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 80671343 - 210 = 80670319 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 (80671363) 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, 168530 + ... + 169007.

It is an arithmetic number, because the mean of its divisors is an integer number (20252280).

Almost surely, 280671343 is an apocalyptic number.

80671343 is a deficient number, since it is larger than the sum of its proper divisors (337777).

80671343 is a wasteful number, since it uses less digits than its factorization.

80671343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337776.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 80671343 is about 8981.7227189443. The cubic root of 80671343 is about 432.0888859596.

The spelling of 80671343 in words is "eighty million, six hundred seventy-one thousand, three hundred forty-three".

Divisors: 1 239 337537 80671343