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13256303 = 234712263
BaseRepresentation
bin110010100100…
…011001101111
3220221111020012
4302210121233
511343200203
61152043435
7220451054
oct62443157
926844205
1013256303
117534725
12453357b
132991a88
141a9102b
15126cbd8
hexca466f

13256303 has 8 divisors (see below), whose sum is σ = 14128128. Its totient is φ = 12409144.

The previous prime is 13256239. The next prime is 13256333. The reversal of 13256303 is 30365231.

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

It is not a de Polignac number, because 13256303 - 26 = 13256239 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13256333) 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, 5051 + ... + 7212.

It is an arithmetic number, because the mean of its divisors is an integer number (1766016).

Almost surely, 213256303 is an apocalyptic number.

13256303 is a deficient number, since it is larger than the sum of its proper divisors (871825).

13256303 is a wasteful number, since it uses less digits than its factorization.

13256303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12333.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 13256303 is about 3640.9206253364. The cubic root of 13256303 is about 236.6686902778.

The spelling of 13256303 in words is "thirteen million, two hundred fifty-six thousand, three hundred three".

Divisors: 1 23 47 1081 12263 282049 576361 13256303