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8387930093 is a prime number
BaseRepresentation
bin1111100111111010…
…11010011111101101
3210122120100222221112
413303331122133231
5114134302230333
63504154241405
7414601141454
oct76375323755
923576328845
108387930093
11361484a034
121761126265
13a38a1995a
14598009b9b
153415c7948
hex1f3f5a7ed

8387930093 has 2 divisors, whose sum is σ = 8387930094. Its totient is φ = 8387930092.

The previous prime is 8387930087. The next prime is 8387930123. The reversal of 8387930093 is 3900397838.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4882934884 + 3504995209 = 69878^2 + 59203^2 .

It is a cyclic number.

It is not a de Polignac number, because 8387930093 - 24 = 8387930077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8387938093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4193965046 + 4193965047.

It is an arithmetic number, because the mean of its divisors is an integer number (4193965047).

Almost surely, 28387930093 is an apocalyptic number.

It is an amenable number.

8387930093 is a deficient number, since it is larger than the sum of its proper divisors (1).

8387930093 is an equidigital number, since it uses as much as digits as its factorization.

8387930093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 50.

The square root of 8387930093 is about 91585.6434873938. The cubic root of 8387930093 is about 2031.8186112453.

The spelling of 8387930093 in words is "eight billion, three hundred eighty-seven million, nine hundred thirty thousand, ninety-three".