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3420131989 is a prime number
BaseRepresentation
bin1100101111011011…
…0001001010010101
322211100120201002011
43023312301022111
524001023210424
61323213144221
7150516433201
oct31366611225
98740521064
103420131989
1114a563686a
127b548b071
13426754351
1424632bb01
151503d2694
hexcbdb1295

3420131989 has 2 divisors, whose sum is σ = 3420131990. Its totient is φ = 3420131988.

The previous prime is 3420131987. The next prime is 3420132013. The reversal of 3420131989 is 9891310243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2529587025 + 890544964 = 50295^2 + 29842^2 .

It is a cyclic number.

It is not a de Polignac number, because 3420131989 - 21 = 3420131987 is a prime.

It is a super-2 number, since 2×34201319892 = 23394605644362192242, which contains 22 as substring.

Together with 3420131987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3420131987) 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, 1710065994 + 1710065995.

It is an arithmetic number, because the mean of its divisors is an integer number (1710065995).

Almost surely, 23420131989 is an apocalyptic number.

It is an amenable number.

3420131989 is a deficient number, since it is larger than the sum of its proper divisors (1).

3420131989 is an equidigital number, since it uses as much as digits as its factorization.

3420131989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 3420131989 is about 58481.8945401053. The cubic root of 3420131989 is about 1506.6566363563.

The spelling of 3420131989 in words is "three billion, four hundred twenty million, one hundred thirty-one thousand, nine hundred eighty-nine".