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14821973 is a prime number
BaseRepresentation
bin111000100010…
…101001010101
31000220000220222
4320202221111
512243300343
61245404125
7236661515
oct70425125
930800828
1014821973
118403a71
124b69645
1330bc5ca
141d7b845
15147ba68
hexe22a55

14821973 has 2 divisors, whose sum is σ = 14821974. Its totient is φ = 14821972.

The previous prime is 14821931. The next prime is 14821979. The reversal of 14821973 is 37912841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14760964 + 61009 = 3842^2 + 247^2 .

It is a cyclic number.

It is not a de Polignac number, because 14821973 - 218 = 14559829 is a prime.

It is a super-2 number, since 2×148219732 = 439381767225458, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14821979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7410986 + 7410987.

It is an arithmetic number, because the mean of its divisors is an integer number (7410987).

Almost surely, 214821973 is an apocalyptic number.

It is an amenable number.

14821973 is a deficient number, since it is larger than the sum of its proper divisors (1).

14821973 is an equidigital number, since it uses as much as digits as its factorization.

14821973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 35.

The square root of 14821973 is about 3849.9315578332. The cubic root of 14821973 is about 245.6416500097.

The spelling of 14821973 in words is "fourteen million, eight hundred twenty-one thousand, nine hundred seventy-three".