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13003423 = 59433509
BaseRepresentation
bin110001100110…
…101010011111
3220110122100021
4301212222133
511312102143
61142413011
7215345566
oct61465237
926418307
1013003423
117381734
124431167
132903944
141a26bdd
15121cced
hexc66a9f

13003423 has 8 divisors (see below), whose sum is σ = 13280400. Its totient is φ = 12728448.

The previous prime is 13003399. The next prime is 13003433. The reversal of 13003423 is 32430031.

13003423 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 13003423 - 221 = 10906271 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13003397 and 13003406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13003433) 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, 25293 + ... + 25801.

It is an arithmetic number, because the mean of its divisors is an integer number (1660050).

Almost surely, 213003423 is an apocalyptic number.

13003423 is a deficient number, since it is larger than the sum of its proper divisors (276977).

13003423 is an equidigital number, since it uses as much as digits as its factorization.

13003423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 13003423 is about 3606.0259289140. The cubic root of 13003423 is about 235.1541044447.

Adding to 13003423 its reverse (32430031), we get a palindrome (45433454).

The spelling of 13003423 in words is "thirteen million, three thousand, four hundred twenty-three".

Divisors: 1 59 433 509 25547 30031 220397 13003423