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14052281 = 73192497
BaseRepresentation
bin110101100110…
…101110111001
3222102221002212
4311212232321
512044133111
61221104505
7230304515
oct65465671
928387085
1014052281
117a28761
124858135
132bb0179
141c1b145
15137898b
hexd66bb9

14052281 has 4 divisors (see below), whose sum is σ = 14244852. Its totient is φ = 13859712.

The previous prime is 14052263. The next prime is 14052289. The reversal of 14052281 is 18225041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18225041 = 59308899.

It can be written as a sum of positive squares in 2 ways, for example, as 11162281 + 2890000 = 3341^2 + 1700^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-14052281 is a prime.

It is a super-2 number, since 2×140522812 = 394933202605922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14052289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96176 + ... + 96321.

It is an arithmetic number, because the mean of its divisors is an integer number (3561213).

Almost surely, 214052281 is an apocalyptic number.

It is an amenable number.

14052281 is a deficient number, since it is larger than the sum of its proper divisors (192571).

14052281 is an equidigital number, since it uses as much as digits as its factorization.

14052281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192570.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 14052281 is about 3748.6372190437. The cubic root of 14052281 is about 241.3138648069.

The spelling of 14052281 in words is "fourteen million, fifty-two thousand, two hundred eighty-one".

Divisors: 1 73 192497 14052281