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13201423 = 76917167
BaseRepresentation
bin110010010111…
…000000001111
3220211200221121
4302113000033
511334421143
61150541411
7220132054
oct62270017
926750847
1013201423
1174a7474
124507867
132972ac1
141a7902b
15125b7ed
hexc9700f

13201423 has 4 divisors (see below), whose sum is σ = 13219360. Its totient is φ = 13183488.

The previous prime is 13201421. The next prime is 13201439. The reversal of 13201423 is 32410231.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13201423 - 21 = 13201421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13201397 and 13201406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13201421) 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 3 ways as a sum of consecutive naturals, for example, 7815 + ... + 9352.

It is an arithmetic number, because the mean of its divisors is an integer number (3304840).

Almost surely, 213201423 is an apocalyptic number.

13201423 is a deficient number, since it is larger than the sum of its proper divisors (17937).

13201423 is an equidigital number, since it uses as much as digits as its factorization.

13201423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17936.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 13201423 is about 3633.3762535691. The cubic root of 13201423 is about 236.3416422649.

Adding to 13201423 its reverse (32410231), we get a palindrome (45611654).

The spelling of 13201423 in words is "thirteen million, two hundred one thousand, four hundred twenty-three".

Divisors: 1 769 17167 13201423