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13000030973 is a prime number
BaseRepresentation
bin11000001101101110…
…01011101011111101
31020112222211222221122
430012313023223331
5203111001442343
65545551440325
7640103303636
oct140667135375
936488758848
1013000030973
1155711a6756
1226298260a5
1312c23b2b27
148b477688d
1551145b068
hex306dcbafd

13000030973 has 2 divisors, whose sum is σ = 13000030974. Its totient is φ = 13000030972.

The previous prime is 13000030937. The next prime is 13000031027. The reversal of 13000030973 is 37903000031.

Together with previous prime (13000030937) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12463043044 + 536987929 = 111638^2 + 23173^2 .

It is a cyclic number.

It is not a de Polignac number, because 13000030973 - 212 = 13000026877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13000030903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6500015486 + 6500015487.

It is an arithmetic number, because the mean of its divisors is an integer number (6500015487).

Almost surely, 213000030973 is an apocalyptic number.

It is an amenable number.

13000030973 is a deficient number, since it is larger than the sum of its proper divisors (1).

13000030973 is an equidigital number, since it uses as much as digits as its factorization.

13000030973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1701, while the sum is 26.

The spelling of 13000030973 in words is "thirteen billion, thirty thousand, nine hundred seventy-three".