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14620681 is a prime number
BaseRepresentation
bin110111110001…
…100000001001
31000111210210201
4313301200021
512220330211
61241212201
7235162615
oct67614011
930453721
1014620681
118286809
124a91061
13304baba
141d28345
15143c0c1
hexdf1809

14620681 has 2 divisors, whose sum is σ = 14620682. Its totient is φ = 14620680.

The previous prime is 14620679. The next prime is 14620687. The reversal of 14620681 is 18602641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12187081 + 2433600 = 3491^2 + 1560^2 .

It is a cyclic number.

It is not a de Polignac number, because 14620681 - 21 = 14620679 is a prime.

It is a super-2 number, since 2×146206812 = 427528625807522, which contains 22 as substring.

Together with 14620679, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (14620687) 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, 7310340 + 7310341.

It is an arithmetic number, because the mean of its divisors is an integer number (7310341).

Almost surely, 214620681 is an apocalyptic number.

It is an amenable number.

14620681 is a deficient number, since it is larger than the sum of its proper divisors (1).

14620681 is an equidigital number, since it uses as much as digits as its factorization.

14620681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 14620681 is about 3823.6999097733. The cubic root of 14620681 is about 244.5245868916.

The spelling of 14620681 in words is "fourteen million, six hundred twenty thousand, six hundred eighty-one".