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14728660 = 225736433
BaseRepresentation
bin111000001011…
…110111010100
31000201021220221
4320023313110
512232304120
61243404124
7236122462
oct70136724
930637827
1014728660
11834a951
124b23644
133088cab
141d55832
15145e0aa
hexe0bdd4

14728660 has 12 divisors (see below), whose sum is σ = 30930228. Its totient is φ = 5891456.

The previous prime is 14728639. The next prime is 14728663. The reversal of 14728660 is 6682741.

It can be written as a sum of positive squares in 2 ways, for example, as 6330256 + 8398404 = 2516^2 + 2898^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14728663) 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, 368197 + ... + 368236.

It is an arithmetic number, because the mean of its divisors is an integer number (2577519).

Almost surely, 214728660 is an apocalyptic number.

14728660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14728660 is an abundant number, since it is smaller than the sum of its proper divisors (16201568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14728660 is a wasteful number, since it uses less digits than its factorization.

14728660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736442 (or 736440 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 14728660 is about 3837.7936369742. The cubic root of 14728660 is about 245.1250784354.

The spelling of 14728660 in words is "fourteen million, seven hundred twenty-eight thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 736433 1472866 2945732 3682165 7364330 14728660