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80111807 is a prime number
BaseRepresentation
bin1001100011001…
…10100010111111
312120202002201222
410301212202333
5131002034212
611541023555
71661640056
oct461464277
9176662658
1080111807
1141248206
12229b4bbb
131379c249
14a8d539d
157076c72
hex4c668bf

80111807 has 2 divisors, whose sum is σ = 80111808. Its totient is φ = 80111806.

The previous prime is 80111797. The next prime is 80111813. The reversal of 80111807 is 70811108.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80111807 - 214 = 80095423 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80111407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40055903 + 40055904.

It is an arithmetic number, because the mean of its divisors is an integer number (40055904).

Almost surely, 280111807 is an apocalyptic number.

80111807 is a deficient number, since it is larger than the sum of its proper divisors (1).

80111807 is an equidigital number, since it uses as much as digits as its factorization.

80111807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 26.

The square root of 80111807 is about 8950.5199290321. The cubic root of 80111807 is about 431.0875786306.

The spelling of 80111807 in words is "eighty million, one hundred eleven thousand, eight hundred seven".