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76021097 is a prime number
BaseRepresentation
bin1001000011111…
…11110101101001
312022001021100012
410201333311221
5123430133342
611313221305
71612111565
oct441776551
9168037305
1076021097
1139a03859
1221561835
13129992c9
14a14c6a5
156a19b82
hex487fd69

76021097 has 2 divisors, whose sum is σ = 76021098. Its totient is φ = 76021096.

The previous prime is 76021079. The next prime is 76021129. The reversal of 76021097 is 79012067.

Together with previous prime (76021079) it forms an Ormiston pair, because they use the same digits, order apart.

It is an a-pointer prime, because the next prime (76021129) can be obtained adding 76021097 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75968656 + 52441 = 8716^2 + 229^2 .

It is an emirp because it is prime and its reverse (79012067) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76021097 - 214 = 76004713 is a prime.

It is not a weakly prime, because it can be changed into another prime (76021037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38010548 + 38010549.

It is an arithmetic number, because the mean of its divisors is an integer number (38010549).

Almost surely, 276021097 is an apocalyptic number.

It is an amenable number.

76021097 is a deficient number, since it is larger than the sum of its proper divisors (1).

76021097 is an equidigital number, since it uses as much as digits as its factorization.

76021097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 76021097 is about 8719.0077990560. The cubic root of 76021097 is about 423.6215491722.

The spelling of 76021097 in words is "seventy-six million, twenty-one thousand, ninety-seven".