Search a number
13123133 = 172333563
BaseRepresentation
bin110010000011…
…111000111101
3220200201112222
4302003320331
511324420013
61145135125
7216354602
oct62037075
926621488
1013123133
117453671
12448a4a5
13294628a
141a586a9
151243508
hexc83e3d

13123133 has 8 divisors (see below), whose sum is σ = 14499648. Its totient is φ = 11813824.

The previous prime is 13123111. The next prime is 13123147. The reversal of 13123133 is 33132131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13123133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123183) 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, 16391 + ... + 17172.

It is an arithmetic number, because the mean of its divisors is an integer number (1812456).

Almost surely, 213123133 is an apocalyptic number.

It is an amenable number.

13123133 is a deficient number, since it is larger than the sum of its proper divisors (1376515).

13123133 is a wasteful number, since it uses less digits than its factorization.

13123133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33603.

The product of its digits is 162, while the sum is 17.

The square root of 13123133 is about 3622.5865069036. The cubic root of 13123133 is about 235.8735138065.

Adding to 13123133 its reverse (33132131), we get a palindrome (46255264).

The spelling of 13123133 in words is "thirteen million, one hundred twenty-three thousand, one hundred thirty-three".

Divisors: 1 17 23 391 33563 570571 771949 13123133