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2966931889 is a prime number
BaseRepresentation
bin1011000011010111…
…1100100110110001
321122202210202102021
42300311330212301
522034013310024
61210223351441
7133344335125
oct26065744661
97582722367
102966931889
111292834929
126a9752581
133838a6bcc
14202079585
15125710de4
hexb0d7c9b1

2966931889 has 2 divisors, whose sum is σ = 2966931890. Its totient is φ = 2966931888.

The previous prime is 2966931887. The next prime is 2966931923. The reversal of 2966931889 is 9881396692.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2956640625 + 10291264 = 54375^2 + 3208^2 .

It is a cyclic number.

It is not a de Polignac number, because 2966931889 - 21 = 2966931887 is a prime.

Together with 2966931887, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2966931881) 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, 1483465944 + 1483465945.

It is an arithmetic number, because the mean of its divisors is an integer number (1483465945).

Almost surely, 22966931889 is an apocalyptic number.

It is an amenable number.

2966931889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2966931889 is an equidigital number, since it uses as much as digits as its factorization.

2966931889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10077696, while the sum is 61.

The square root of 2966931889 is about 54469.5501082945. The cubic root of 2966931889 is about 1436.9308166154.

The spelling of 2966931889 in words is "two billion, nine hundred sixty-six million, nine hundred thirty-one thousand, eight hundred eighty-nine".