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14034721 = 70120021
BaseRepresentation
bin110101100010…
…011100100001
3222102001000111
4311202130201
512043102341
61220451321
7230202361
oct65423441
928361014
1014034721
117a16548
124849b41
132ba518c
141c149a1
151373681
hexd62721

14034721 has 4 divisors (see below), whose sum is σ = 14055444. Its totient is φ = 14014000.

The previous prime is 14034689. The next prime is 14034733. The reversal of 14034721 is 12743041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12743041 = 15184391.

It can be written as a sum of positive squares in 2 ways, for example, as 5832225 + 8202496 = 2415^2 + 2864^2 .

It is a cyclic number.

It is not a de Polignac number, because 14034721 - 25 = 14034689 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14034692 and 14034701.

It is not an unprimeable number, because it can be changed into a prime (14034781) 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, 9310 + ... + 10711.

It is an arithmetic number, because the mean of its divisors is an integer number (3513861).

Almost surely, 214034721 is an apocalyptic number.

It is an amenable number.

14034721 is a deficient number, since it is larger than the sum of its proper divisors (20723).

14034721 is an equidigital number, since it uses as much as digits as its factorization.

14034721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20722.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 14034721 is about 3746.2943023740. The cubic root of 14034721 is about 241.2133060964.

Adding to 14034721 its reverse (12743041), we get a palindrome (26777762).

The spelling of 14034721 in words is "fourteen million, thirty-four thousand, seven hundred twenty-one".

Divisors: 1 701 20021 14034721