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14038821 = 321791757
BaseRepresentation
bin110101100011…
…011100100101
3222102020122100
4311203130211
512043220241
61220522313
7230220336
oct65433445
928366570
1014038821
117a19635
124850399
132ba6cc4
141c1628d
1513749b6
hexd63725

14038821 has 12 divisors (see below), whose sum is σ = 21471372. Its totient is φ = 8808576.

The previous prime is 14038819. The next prime is 14038823. The reversal of 14038821 is 12883041.

It is an interprime number because it is at equal distance from previous prime (14038819) and next prime (14038823).

It can be written as a sum of positive squares in 2 ways, for example, as 12320100 + 1718721 = 3510^2 + 1311^2 .

It is not a de Polignac number, because 14038821 - 21 = 14038819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14038823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45726 + ... + 46031.

It is an arithmetic number, because the mean of its divisors is an integer number (1789281).

Almost surely, 214038821 is an apocalyptic number.

It is an amenable number.

14038821 is a deficient number, since it is larger than the sum of its proper divisors (7432551).

14038821 is a wasteful number, since it uses less digits than its factorization.

14038821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91780 (or 91777 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 14038821 is about 3746.8414698250. The cubic root of 14038821 is about 241.2367925690.

The spelling of 14038821 in words is "fourteen million, thirty-eight thousand, eight hundred twenty-one".

Divisors: 1 3 9 17 51 153 91757 275271 825813 1559869 4679607 14038821