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14220256 = 25231392
BaseRepresentation
bin110110001111…
…101111100000
3222202110112011
4312033233200
512120022011
61224442304
7231604321
oct66175740
928673464
1014220256
118032986
124919394
132c3b76b
141c62448
1513ad621
hexd8fbe0

14220256 has 36 divisors (see below), whose sum is σ = 29425032. Its totient is φ = 6752064.

The previous prime is 14220253. The next prime is 14220257. The reversal of 14220256 is 65202241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14220253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 102235 + ... + 102373.

It is an arithmetic number, because the mean of its divisors is an integer number (817362).

Almost surely, 214220256 is an apocalyptic number.

14220256 is a gapful number since it is divisible by the number (16) 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 14220256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14712516).

14220256 is an abundant number, since it is smaller than the sum of its proper divisors (15204776).

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

14220256 is an equidigital number, since it uses as much as digits as its factorization.

14220256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 14220256 is about 3770.9754706176. The cubic root of 14220256 is about 242.2715799999.

Adding to 14220256 its reverse (65202241), we get a palindrome (79422497).

The spelling of 14220256 in words is "fourteen million, two hundred twenty thousand, two hundred fifty-six".

Divisors: 1 2 4 8 16 23 32 46 92 139 184 278 368 556 736 1112 2224 3197 4448 6394 12788 19321 25576 38642 51152 77284 102304 154568 309136 444383 618272 888766 1777532 3555064 7110128 14220256