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13033423 = 133132341
BaseRepresentation
bin110001101101…
…111111001111
3220112011111101
4301231333033
511314032143
61143203531
7215532214
oct61557717
926464441
1013033423
1173a2227
1244465a7
1329144b0
141a33b0b
151226b4d
hexc6dfcf

13033423 has 8 divisors (see below), whose sum is σ = 14489216. Its totient is φ = 11642400.

The previous prime is 13033421. The next prime is 13033439. The reversal of 13033423 is 32433031.

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 13033423 - 21 = 13033421 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13033423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13033421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15768 + ... + 16573.

It is an arithmetic number, because the mean of its divisors is an integer number (1811152).

Almost surely, 213033423 is an apocalyptic number.

13033423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13033423 is a deficient number, since it is larger than the sum of its proper divisors (1455793).

13033423 is a wasteful number, since it uses less digits than its factorization.

13033423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32385.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 13033423 is about 3610.1832363469. The cubic root of 13033423 is about 235.3348057075.

Adding to 13033423 its reverse (32433031), we get a palindrome (45466454).

It can be divided in two parts, 13033 and 423, that added together give a square (13456 = 1162).

The spelling of 13033423 in words is "thirteen million, thirty-three thousand, four hundred twenty-three".

Divisors: 1 13 31 403 32341 420433 1002571 13033423