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14427281 = 117011871
BaseRepresentation
bin110111000010…
…010010010001
31000010222111202
4313002102101
512143133111
61233120545
7233426021
oct67022221
930128452
1014427281
118164480
1249b9155
132cb1a6b
141cb7a81
1513eeb3b
hexdc2491

14427281 has 8 divisors (see below), whose sum is σ = 15769728. Its totient is φ = 13090000.

The previous prime is 14427269. The next prime is 14427319. The reversal of 14427281 is 18272441.

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

It is not a de Polignac number, because 14427281 - 210 = 14426257 is a prime.

It is a super-2 number, since 2×144272812 = 416292874105922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (14427241) 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, 6776 + ... + 8646.

It is an arithmetic number, because the mean of its divisors is an integer number (1971216).

Almost surely, 214427281 is an apocalyptic number.

14427281 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

14427281 is a deficient number, since it is larger than the sum of its proper divisors (1342447).

14427281 is a wasteful number, since it uses less digits than its factorization.

14427281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2583.

The product of its digits is 3584, while the sum is 29.

The square root of 14427281 is about 3798.3260786826. The cubic root of 14427281 is about 243.4416204508.

The spelling of 14427281 in words is "fourteen million, four hundred twenty-seven thousand, two hundred eighty-one".

Divisors: 1 11 701 1871 7711 20581 1311571 14427281