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95087981 is a prime number
BaseRepresentation
bin1011010101011…
…10110101101101
320121220222012002
411222232311231
5143320303411
613234022045
72233143302
oct552566555
9217828162
1095087981
114974700a
1227a17925
1316913aa1
14c8b30a9
15853433b
hex5aaed6d

95087981 has 2 divisors, whose sum is σ = 95087982. Its totient is φ = 95087980.

The previous prime is 95087969. The next prime is 95087983. The reversal of 95087981 is 18978059.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59923081 + 35164900 = 7741^2 + 5930^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-95087981 is a prime.

It is a super-2 number, since 2×950879812 = 18083448261312722, which contains 22 as substring.

Together with 95087983, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (95087983) 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, 47543990 + 47543991.

It is an arithmetic number, because the mean of its divisors is an integer number (47543991).

Almost surely, 295087981 is an apocalyptic number.

It is an amenable number.

95087981 is a deficient number, since it is larger than the sum of its proper divisors (1).

95087981 is an equidigital number, since it uses as much as digits as its factorization.

95087981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 47.

The square root of 95087981 is about 9751.3066303957. The cubic root of 95087981 is about 456.4310792830.

The spelling of 95087981 in words is "ninety-five million, eighty-seven thousand, nine hundred eighty-one".