| Base | Representation |
|---|---|
| bin | 110001101110… |
| … | …000101010100 |
| 3 | 220112012000210 |
| 4 | 301232011110 |
| 5 | 11314040222 |
| 6 | 1143205420 |
| 7 | 215533311 |
| oct | 61560524 |
| 9 | 26465023 |
| 10 | 13033812 |
| 11 | 73a2550 |
| 12 | 4446870 |
| 13 | 291471c |
| 14 | 1a33d08 |
| 15 | 1226d0c |
| hex | c6e154 |
13033812 has 48 divisors (see below), whose sum is σ = 33388992. Its totient is φ = 3924480.
The previous prime is 13033807. The next prime is 13033817. The reversal of 13033812 is 21833031.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (13033807) and next prime (13033817).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13033817) 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 15 ways as a sum of consecutive naturals, for example, 38508 + ... + 38844.
It is an arithmetic number, because the mean of its divisors is an integer number (695604).
Almost surely, 213033812 is an apocalyptic number.
13033812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 13033812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16694496).
13033812 is an abundant number, since it is smaller than the sum of its proper divisors (20355180).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13033812 is a wasteful number, since it uses less digits than its factorization.
13033812 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 648 (or 646 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 21.
The square root of 13033812 is about 3610.2371113266. The cubic root of 13033812 is about 235.3371469786.
Adding to 13033812 its reverse (21833031), we get a palindrome (34866843).
It can be divided in two parts, 1303 and 3812, that added together give a palindrome (5115).
The spelling of 13033812 in words is "thirteen million, thirty-three thousand, eight hundred twelve".
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