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14065861 = 31634447
BaseRepresentation
bin110101101010…
…000011000101
3222110121201211
4311222003011
512100101421
61221251421
7230362225
oct65520305
928417654
1014065861
117a37987
124863b71
132bb63c4
141c22085
15137c9e1
hexd6a0c5

14065861 has 4 divisors (see below), whose sum is σ = 14073472. Its totient is φ = 14058252.

The previous prime is 14065837. The next prime is 14065879. The reversal of 14065861 is 16856041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 16856041 = 19387337.

It is a cyclic number.

It is not a de Polignac number, because 14065861 - 29 = 14065349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14065061) 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 in 3 ways as a sum of consecutive naturals, for example, 940 + ... + 5386.

It is an arithmetic number, because the mean of its divisors is an integer number (3518368).

Almost surely, 214065861 is an apocalyptic number.

It is an amenable number.

14065861 is a deficient number, since it is larger than the sum of its proper divisors (7611).

14065861 is an equidigital number, since it uses as much as digits as its factorization.

14065861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7610.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 14065861 is about 3750.4481065601. The cubic root of 14065861 is about 241.3915743074.

The spelling of 14065861 in words is "fourteen million, sixty-five thousand, eight hundred sixty-one".

Divisors: 1 3163 4447 14065861