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75710081 is a prime number
BaseRepresentation
bin1001000001100…
…11111010000001
312021110110201002
410200303322001
5123340210311
611302421345
71606345046
oct440637201
9167413632
1075710081
1139811117
1221431855
13128ba885
14a0ab1cd
1569a793b
hex4833e81

75710081 has 2 divisors, whose sum is σ = 75710082. Its totient is φ = 75710080.

The previous prime is 75710059. The next prime is 75710101. The reversal of 75710081 is 18001757.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63043600 + 12666481 = 7940^2 + 3559^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-75710081 is a prime.

It is a super-2 number, since 2×757100812 = 11464032730053122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (75710881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37855040 + 37855041.

It is an arithmetic number, because the mean of its divisors is an integer number (37855041).

Almost surely, 275710081 is an apocalyptic number.

It is an amenable number.

75710081 is a deficient number, since it is larger than the sum of its proper divisors (1).

75710081 is an equidigital number, since it uses as much as digits as its factorization.

75710081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1960, while the sum is 29.

The square root of 75710081 is about 8701.1540039238. The cubic root of 75710081 is about 423.0430555276.

The spelling of 75710081 in words is "seventy-five million, seven hundred ten thousand, eighty-one".