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14206660 = 22513101541
BaseRepresentation
bin110110001100…
…011011000100
3222201202212121
4312030123010
512114103120
61224255324
7231516556
oct66143304
928652777
1014206660
118023746
124911544
132c35510
141c5b4d6
1513a95aa
hexd8c6c4

14206660 has 48 divisors (see below), whose sum is σ = 32506992. Its totient is φ = 5184000.

The previous prime is 14206657. The next prime is 14206681. The reversal of 14206660 is 6660241.

14206660 = T401 + T402 + ... + T530.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 8836 + 14197824 = 94^2 + 3768^2 .

It is a Smith number, since the sum of its digits (25) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25990 + ... + 26530.

It is an arithmetic number, because the mean of its divisors is an integer number (677229).

Almost surely, 214206660 is an apocalyptic number.

14206660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14206660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16253496).

14206660 is an abundant number, since it is smaller than the sum of its proper divisors (18300332).

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

14206660 is a wasteful number, since it uses less digits than its factorization.

14206660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664 (or 662 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 14206660 is about 3769.1723229378. The cubic root of 14206660 is about 242.1943433515.

The spelling of 14206660 in words is "fourteen million, two hundred six thousand, six hundred sixty".

Divisors: 1 2 4 5 10 13 20 26 52 65 101 130 202 260 404 505 541 1010 1082 1313 2020 2164 2626 2705 5252 5410 6565 7033 10820 13130 14066 26260 28132 35165 54641 70330 109282 140660 218564 273205 546410 710333 1092820 1420666 2841332 3551665 7103330 14206660