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8130221023079 is a prime number
BaseRepresentation
bin111011001001111011011…
…1011111001111101100111
31001210020112002012210011002
41312103312323321331213
52031201143040214304
625142545540303515
71466250312310601
oct166236673717547
931706462183132
108130221023079
1126550098a4271
12ab38366a1b9b
1346c8a4503c7c
1420170d240171
15e17443d731e
hex764f6ef9f67

8130221023079 has 2 divisors, whose sum is σ = 8130221023080. Its totient is φ = 8130221023078.

The previous prime is 8130221023061. The next prime is 8130221023121. The reversal of 8130221023079 is 9703201220318.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8130221023079 - 216 = 8130220957543 is a prime.

It is a super-2 number, since 2×81302210230792 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8130221023679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4065110511539 + 4065110511540.

It is an arithmetic number, because the mean of its divisors is an integer number (4065110511540).

Almost surely, 28130221023079 is an apocalyptic number.

8130221023079 is a deficient number, since it is larger than the sum of its proper divisors (1).

8130221023079 is an equidigital number, since it uses as much as digits as its factorization.

8130221023079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The spelling of 8130221023079 in words is "eight trillion, one hundred thirty billion, two hundred twenty-one million, twenty-three thousand, seventy-nine".