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14520345 = 357138289
BaseRepresentation
bin110111011001…
…000000011001
31000022201011120
4313121000121
512204122340
61235115453
7234264240
oct67310031
930281146
1014520345
118218394
124a42b89
133015228
141cdd957
15141c4d0
hexdd9019

14520345 has 16 divisors (see below), whose sum is σ = 26551680. Its totient is φ = 6637824.

The previous prime is 14520323. The next prime is 14520349. The reversal of 14520345 is 54302541.

It is not a de Polignac number, because 14520345 - 28 = 14520089 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (14520349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69040 + ... + 69249.

It is an arithmetic number, because the mean of its divisors is an integer number (1659480).

Almost surely, 214520345 is an apocalyptic number.

14520345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

14520345 is a deficient number, since it is larger than the sum of its proper divisors (12031335).

14520345 is a wasteful number, since it uses less digits than its factorization.

14520345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138304.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 14520345 is about 3810.5570458924. The cubic root of 14520345 is about 243.9639436554.

Adding to 14520345 its reverse (54302541), we get a palindrome (68822886).

The spelling of 14520345 in words is "fourteen million, five hundred twenty thousand, three hundred forty-five".

Divisors: 1 3 5 7 15 21 35 105 138289 414867 691445 968023 2074335 2904069 4840115 14520345