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14121715 = 54316553
BaseRepresentation
bin110101110111…
…101011110011
3222120110100111
4311313223303
512103343330
61222402151
7231014116
oct65675363
928513314
1014121715
117a75943
124890357
132c0595a
141c3857d
15138e32a
hexd77af3

14121715 has 8 divisors (see below), whose sum is σ = 16987968. Its totient is φ = 11269440.

The previous prime is 14121689. The next prime is 14121727. The reversal of 14121715 is 51712141.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-14121715 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1122 + ... + 5431.

It is an arithmetic number, because the mean of its divisors is an integer number (2123496).

Almost surely, 214121715 is an apocalyptic number.

14121715 is a deficient number, since it is larger than the sum of its proper divisors (2866253).

14121715 is an equidigital number, since it uses as much as digits as its factorization.

14121715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6989.

The product of its digits is 280, while the sum is 22.

The square root of 14121715 is about 3757.8870392815. The cubic root of 14121715 is about 241.7106655257.

Adding to 14121715 its reverse (51712141), we get a palindrome (65833856).

The spelling of 14121715 in words is "fourteen million, one hundred twenty-one thousand, seven hundred fifteen".

Divisors: 1 5 431 2155 6553 32765 2824343 14121715