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14053981 is a prime number
BaseRepresentation
bin110101100111…
…001001011101
3222110000102211
4311213021131
512044211411
61221120421
7230312464
oct65471135
928400384
1014053981
117a29a67
124859111
132bb0b86
141c1b9db
151379221
hexd6725d

14053981 has 2 divisors, whose sum is σ = 14053982. Its totient is φ = 14053980.

The previous prime is 14053979. The next prime is 14053993. The reversal of 14053981 is 18935041.

14053981 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7474756 + 6579225 = 2734^2 + 2565^2 .

It is a cyclic number.

It is not a de Polignac number, because 14053981 - 21 = 14053979 is a prime.

It is a super-2 number, since 2×140539812 = 395028763896722, which contains 22 as substring.

Together with 14053979, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14053961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7026990 + 7026991.

It is an arithmetic number, because the mean of its divisors is an integer number (7026991).

Almost surely, 214053981 is an apocalyptic number.

It is an amenable number.

14053981 is a deficient number, since it is larger than the sum of its proper divisors (1).

14053981 is an equidigital number, since it uses as much as digits as its factorization.

14053981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 14053981 is about 3748.8639612555. The cubic root of 14053981 is about 241.3235955409.

The spelling of 14053981 in words is "fourteen million, fifty-three thousand, nine hundred eighty-one".