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14068639 = 131763659
BaseRepresentation
bin110101101010…
…101110011111
3222110202112201
4311222232133
512100144024
61221312331
7230403304
oct65525637
928422481
1014068639
117a39a82
1248656a7
132bb7750
141c230ab
15137d744
hexd6ab9f

14068639 has 8 divisors (see below), whose sum is σ = 16042320. Its totient is φ = 12222336.

The previous prime is 14068631. The next prime is 14068643. The reversal of 14068639 is 93686041.

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

It is a cyclic number.

It is not a de Polignac number, because 14068639 - 23 = 14068631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14068598 and 14068607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14068631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31609 + ... + 32050.

It is an arithmetic number, because the mean of its divisors is an integer number (2005290).

Almost surely, 214068639 is an apocalyptic number.

14068639 is a deficient number, since it is larger than the sum of its proper divisors (1973681).

14068639 is a wasteful number, since it uses less digits than its factorization.

14068639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63689.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 14068639 is about 3750.8184440199. The cubic root of 14068639 is about 241.4074648302.

The spelling of 14068639 in words is "fourteen million, sixty-eight thousand, six hundred thirty-nine".

Divisors: 1 13 17 221 63659 827567 1082203 14068639