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80125807 is a prime number
BaseRepresentation
bin1001100011010…
…01111101101111
312120202210221111
410301221331233
5131003011212
611541212451
71662025636
oct461517557
9176683844
1080125807
1141257783
1222a01127
13137a5728
14a8da51d
15707aea7
hex4c69f6f

80125807 has 2 divisors, whose sum is σ = 80125808. Its totient is φ = 80125806.

The previous prime is 80125763. The next prime is 80125817. The reversal of 80125807 is 70852108.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80125807 - 219 = 79601519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80125817) 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 as a sum of consecutive naturals, namely, 40062903 + 40062904.

It is an arithmetic number, because the mean of its divisors is an integer number (40062904).

Almost surely, 280125807 is an apocalyptic number.

80125807 is a deficient number, since it is larger than the sum of its proper divisors (1).

80125807 is an equidigital number, since it uses as much as digits as its factorization.

80125807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 80125807 is about 8951.3019723390. The cubic root of 80125807 is about 431.1126888476.

The spelling of 80125807 in words is "eighty million, one hundred twenty-five thousand, eight hundred seven".