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14203109 = 171974241
BaseRepresentation
bin110110001011…
…100011100101
3222201121000002
4312023203211
512113444414
61224231045
7231503324
oct66134345
928647002
1014203109
118021008
12490b485
132c33a0b
141c5a0bb
1513a84de
hexd8b8e5

14203109 has 8 divisors (see below), whose sum is σ = 15118488. Its totient is φ = 13296640.

The previous prime is 14203081. The next prime is 14203139. The reversal of 14203109 is 90130241.

It can be written as a sum of positive squares in 4 ways, for example, as 12271009 + 1932100 = 3503^2 + 1390^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 14203109 - 212 = 14199013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14203139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1229 + ... + 5469.

It is an arithmetic number, because the mean of its divisors is an integer number (1889811).

Almost surely, 214203109 is an apocalyptic number.

It is an amenable number.

14203109 is a deficient number, since it is larger than the sum of its proper divisors (915379).

14203109 is a wasteful number, since it uses less digits than its factorization.

14203109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4455.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 14203109 is about 3768.7012351737. The cubic root of 14203109 is about 242.1741625871.

The spelling of 14203109 in words is "fourteen million, two hundred three thousand, one hundred nine".

Divisors: 1 17 197 3349 4241 72097 835477 14203109