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14280909 = 37960257
BaseRepresentation
bin110110011110…
…100011001101
3222212112201120
4312132203031
512123442114
61230031153
7232246206
oct66364315
928775646
1014280909
118074505
1249484b9
132c60256
141c7a5ad
1513c15a9
hexd9e8cd

14280909 has 8 divisors (see below), whose sum is σ = 19282560. Its totient is φ = 9399936.

The previous prime is 14280883. The next prime is 14280911. The reversal of 14280909 is 90908241.

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

It is not a de Polignac number, because 14280909 - 27 = 14280781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14280909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14280109) 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, 29892 + ... + 30365.

It is an arithmetic number, because the mean of its divisors is an integer number (2410320).

Almost surely, 214280909 is an apocalyptic number.

It is an amenable number.

14280909 is a deficient number, since it is larger than the sum of its proper divisors (5001651).

14280909 is an equidigital number, since it uses as much as digits as its factorization.

14280909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60339.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 14280909 is about 3779.0089970785. The cubic root of 14280909 is about 242.6155413553.

The spelling of 14280909 in words is "fourteen million, two hundred eighty thousand, nine hundred nine".

Divisors: 1 3 79 237 60257 180771 4760303 14280909