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80802143 is a prime number
BaseRepresentation
bin1001101000011…
…11000101011111
312122001011200222
410310033011133
5131141132033
612003511555
72000543522
oct464170537
9178034628
1080802143
1141679934
12230885bb
1313981526
14aa34bb9
157161598
hex4d0f15f

80802143 has 2 divisors, whose sum is σ = 80802144. Its totient is φ = 80802142.

The previous prime is 80802101. The next prime is 80802187. The reversal of 80802143 is 34120808.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80802143 - 28 = 80801887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80801143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40401071 + 40401072.

It is an arithmetic number, because the mean of its divisors is an integer number (40401072).

Almost surely, 280802143 is an apocalyptic number.

80802143 is a deficient number, since it is larger than the sum of its proper divisors (1).

80802143 is an equidigital number, since it uses as much as digits as its factorization.

80802143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 80802143 is about 8989.0012237178. The cubic root of 80802143 is about 432.3222885786.

The spelling of 80802143 in words is "eighty million, eight hundred two thousand, one hundred forty-three".