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14428281 = 37687061
BaseRepresentation
bin110111000010…
…100001111001
31000011000212210
4313002201321
512143201111
61233125333
7233431650
oct67024171
930130783
1014428281
1181651aa
1249b9849
132cb235a
141cb8197
1514000a6
hexdc2879

14428281 has 8 divisors (see below), whose sum is σ = 21985984. Its totient is φ = 8244720.

The previous prime is 14428279. The next prime is 14428301. The reversal of 14428281 is 18282441.

14428281 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 14428281 - 21 = 14428279 is a prime.

It is a super-2 number, since 2×144282812 = 416350585229922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14428241) 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, 343510 + ... + 343551.

It is an arithmetic number, because the mean of its divisors is an integer number (2748248).

Almost surely, 214428281 is an apocalyptic number.

It is an amenable number.

14428281 is a deficient number, since it is larger than the sum of its proper divisors (7557703).

14428281 is an equidigital number, since it uses as much as digits as its factorization.

14428281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687071.

The product of its digits is 4096, while the sum is 30.

The square root of 14428281 is about 3798.4577133358. The cubic root of 14428281 is about 243.4472448878.

The spelling of 14428281 in words is "fourteen million, four hundred twenty-eight thousand, two hundred eighty-one".

Divisors: 1 3 7 21 687061 2061183 4809427 14428281