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14728071 = 34909357
BaseRepresentation
bin111000001011…
…101110000111
31000201021010010
4320023232013
512232244241
61243401303
7236120661
oct70135607
930637103
1014728071
11834a466
124b23233
133088947
141d55531
15145dd16
hexe0bb87

14728071 has 4 divisors (see below), whose sum is σ = 19637432. Its totient is φ = 9818712.

The previous prime is 14728039. The next prime is 14728093. The reversal of 14728071 is 17082741.

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

It is not a de Polignac number, because 14728071 - 25 = 14728039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14728031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2454676 + ... + 2454681.

It is an arithmetic number, because the mean of its divisors is an integer number (4909358).

Almost surely, 214728071 is an apocalyptic number.

14728071 is a deficient number, since it is larger than the sum of its proper divisors (4909361).

14728071 is an equidigital number, since it uses as much as digits as its factorization.

14728071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4909360.

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 14728071 is about 3837.7168994078. The cubic root of 14728071 is about 245.1218108696.

The spelling of 14728071 in words is "fourteen million, seven hundred twenty-eight thousand, seventy-one".

Divisors: 1 3 4909357 14728071