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8013147889 is a prime number
BaseRepresentation
bin1110111011001111…
…01110111011110001
3202200110011002102011
413131213232323301
5112402331213024
63403045322521
7402400430125
oct73547567361
922613132364
108013147889
11344223867a
121677706441
139a9197736
1456032b585
1531d746094
hex1dd9eeef1

8013147889 has 2 divisors, whose sum is σ = 8013147890. Its totient is φ = 8013147888.

The previous prime is 8013147851. The next prime is 8013147907. The reversal of 8013147889 is 9887413108.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4789747264 + 3223400625 = 69208^2 + 56775^2 .

It is a cyclic number.

It is not a de Polignac number, because 8013147889 - 219 = 8012623601 is a prime.

It is not a weakly prime, because it can be changed into another prime (8013147839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4006573944 + 4006573945.

It is an arithmetic number, because the mean of its divisors is an integer number (4006573945).

Almost surely, 28013147889 is an apocalyptic number.

It is an amenable number.

8013147889 is a deficient number, since it is larger than the sum of its proper divisors (1).

8013147889 is an equidigital number, since it uses as much as digits as its factorization.

8013147889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 49.

The square root of 8013147889 is about 89516.1878600737. The cubic root of 8013147889 is about 2001.0950577315.

The spelling of 8013147889 in words is "eight billion, thirteen million, one hundred forty-seven thousand, eight hundred eighty-nine".