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14212015 = 52842403
BaseRepresentation
bin110110001101…
…101110101111
3222202001012221
4312031232233
512114241030
61224340211
7231541306
oct66155657
928661187
1014212015
118027774
124914667
132c37a9c
141c5d43d
1513aae7a
hexd8dbaf

14212015 has 4 divisors (see below), whose sum is σ = 17054424. Its totient is φ = 11369608.

The previous prime is 14211997. The next prime is 14212031. The reversal of 14212015 is 51021241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-14212015 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14212015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1421197 + ... + 1421206.

It is an arithmetic number, because the mean of its divisors is an integer number (4263606).

Almost surely, 214212015 is an apocalyptic number.

14212015 is a deficient number, since it is larger than the sum of its proper divisors (2842409).

14212015 is an equidigital number, since it uses as much as digits as its factorization.

14212015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2842408.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 14212015 is about 3769.8826241675. The cubic root of 14212015 is about 242.2247701088.

Adding to 14212015 its reverse (51021241), we get a palindrome (65233256).

The spelling of 14212015 in words is "fourteen million, two hundred twelve thousand, fifteen".

Divisors: 1 5 2842403 14212015